Di(2-ethylhexyl) phthalate

HCID 8343CAS 117-81-7

基本情報

標準SMILES
CCCCC(CC)COC(=O)c1ccccc1C(=O)OCC(CC)CCCC
InChIKey
BJQHLKABXJIVAM-UHFFFAOYSA-N
分子式
C24H38O4
平均分子量
390.6 g/mol
単同位体質量
390.2770097

概要

Di(2-ethylhexyl) phthlate (DEHP) is a manufactured chemical that is commonly added to plastics to make them flexible. DEHP is a colorless liquid with almost no odor. DEHP is present in plastic products such as wall coverings, tablecloths, floor tiles, furniture upholstery, shower curtains, garden hoses, swimming pool liners, rainwear, baby pants, dolls, some toys, shoes, automobile upholstery and tops, packaging film and sheets, sheathing for wire and cable, medical tubing, and blood storage bags.

名称と識別子

優先名称
Di(2-ethylhexyl) phthalate
IUPAC
bis(2-ethylhexyl) benzene-1,2-dicarboxylate
現地名
フタル酸ビス(2-エチルヘキシル)
英語名
Bis(2-ethylhexyl) phthalate
分子式
C24H38O4
分子量
390.56

名称と別名

Bis(2-ethylhexyl) phthalate117-81-7Di(2-ethylhexyl) phthalateDi(2-ethylhexyl)phthalateEtalonEthylhexyl phthalateVinicizer 80DioctylphthalateHercoflex 260Nuoplaz dopRC plasticizer DOPHatcol dop
名称をさらに表示
フタル酸ビス(2-エチルヘキシル)オクトイルジエチルヘキシルフタラートビス(2-エチルヘキシル)=フタラートビス(2-エチルヘキシル)フタラートフタル酸ジ-2-エチルヘキシルフタル酸ジ-(2-エチルヘキシル)フタル酸ジ(2-エチルヘキシル)ジオクチルフタラートフタル酸ジエチルヘキシルビソフレックスDOP1,2-ベンゼンジカルボン酸ビス(2-エチルヘキシル)ジ(2-エチルヘキシル)フタラートジオクチルフタレート化合物889ジエチルヘキシルフタレートフタル酸ビスオクチルビス(2エチルヘキシル)フタレ-トフタルサンジオクチル標準品フタル酸ジ-2-エチルヘキシル標準品DEHPDOPDEHP-D4Behp1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) esterDI-2-ETHYLHEXYL PHTHALATEDiisocapryl phthalateDi(ethylhexyl) phthalatedi-secOctoil
Reomol dopSansocizer DOPErgoplast FDOMonocizer DOPPlasthall DOPMollan OPittsburgh PX-138Ergoplast FDO-S

データベース識別子

CAS
117-81-7、15495-94-0、8033-53-2、82208-43-3
PubChem CID
8343
DTXSID
DTXSID5020607
ChEMBL
CHEMBL1242017、CHEMBL402794
ChEBI
CHEBI:17747
UNII
C42K0PH13C
EC Number
204-211-0、617-060-4
Nikkaji
J2.909B

物性

構造計算による物性

XLogP
7.4
極性表面積
52.6 Ų
水素結合供与体数
0
水素結合受容体数
4
回転可能結合数
16
重原子数
28

実験および物理化学的性質

Chemical Classes · 4 件

Hazardous Air Pollutants (HAPs)

Carcinogens

Phthalate

Semi-Volatile Organic Compound (SVOC)

Polymers · 2 件

Plastics -> PUR; PVC (soft); ABS; (E)PS

Plastics -> Plasticisers

PesticidesPesticide -> EPA IRIS
LogP · 3 件

log Kow = 7.60

5.03

7.3

OdorSlight odor
Plasticizers · 2 件

Plasticizers

Plasticizer

物理化学的性質

融点
-50 °C · -50 °C
沸点
386 °C · 386 °C (lit.)
比重(密度)
0.985 g/mL · 0.985 g/mL at 20 °C (lit.)
蒸気密度
16 · >16 (vs air)
Pour Point
-46 · -46
蒸気圧
1.2 mm · 1.2 mm Hg ( 93 °C)

化学的性質

化学的特性Bis(2-ethylhexyl)phthalate is a colorless liquid with a slight odor. It is miscible with mineral oil and hexane, and soluble in most organic solvents. Bis(2-ethylhexyl)phthalate is insoluble in water (NTP, 1994a).

安全と法規制

GHS分類

GHS Classification · 6 件

Danger

H360FD: May damage fertility; May damage the unborn child [Danger Reproductive toxicity]

P203, P280, P318, P405, and P501 (click each P-code to see the statement)

This chemical does not meet GHS hazard criteria for < 0.1% (1 of 1071) of reports.

Danger

H360 (94.5%): May damage fertility or the unborn child [Danger Reproductive toxicity]

危険有害性情報

Regulatory Information · 6 件

Chemical: 1,2-Benzenedicarboxylic acid, 1,2-bis(2-ethylhexyl) ester

Hazard Traits - Bioaccumulation; Carcinogenicity; Developmental Toxicity; Endocrine Toxicity; Environmental Persistence; Hepatotoxicity and Digestive System Toxicity; Immunotoxicity; Reproductive Toxicity; Respiratory Toxicity

Regulation (EC) No 178/2002 (amended)

1,2-Benzenedicarboxylic acid, 1,2-bis(2-ethylhexyl) ester is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,2-Benzenedicarboxylic acid, 1,2-bis(2-ethylhexyl) ester are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 19-01-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/15358

Restricted substance: Bis (2-ethylhexyl) phthalate (DEHP)

Other Safety InformationIMAP assessments - Phthalate esters: Environment tier II assessment
Fire Hazards · 2 件

Special Hazards of Combustion Products: Irritating vapors and toxic gases, such as carbon dioxide and carbon monoxide, may be formed when involved in fire.

Combustible. Gives off irritating or toxic fumes (or gases) in a fire.

Health HazardsInhalation can cause nausea and irritation of nose and throat. Contact of liquid with eyes or skin causes irritation. Ingestion can cause abdominal cramps, nausea and diarrhea. (USCG, 1999)
Hazards Summary · 2 件

Di(2-ethylhexyl) phthlate (DEHP) is a manufactured chemical that is commonly added to plastics to make them flexible. DEHP is a colorless liquid with almost no odor. DEHP is present in plastic products such as wall coverings, tablecloths, floor tiles, furniture upholstery, shower curtains, garden hoses, swimming pool liners, rainwear, baby pants, dolls, some toys, shoes, automobile upholstery and tops, packaging film and sheets, sheathing for wire and cable, medical tubing, and blood storage bags.

Bis

FDA RequirementsDioctylphthalate an indirect food additive for use only as a component of adhesives.

安全と保護具

Fire Fighting · 2 件

Fire Extinguishing Agents Not to Be Used: Water.

Use water spray, foam, powder, carbon dioxide.

First Aid Measures · 4 件

Fresh air, rest.

Remove contaminated clothes. Rinse skin with plenty of water or shower.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Give one or two glasses of water to drink.

First Aid · 2 件

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

(General first aid procedures)

Safe StorageSeparated from strong oxidants, acids, alkalis and nitrates. Cool. Dry. Well closed.
Firefighting Hazards... May give off irritating vapor @ high temperature.
Fire Fighting Procedures · 4 件

Dry powder, carbon dioxide, foam. Water or foam may cause frothing.

Water or foam may cause frothing.

Wear self contained breathing apparatus for fire fighting if necessary.

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

毒性情報

Toxicological InformationCDC-ATSDR Toxicological Profile
Body Burden · 5 件

Bis(2-ethylhexyl) phthalate was detected in human adipose tissue at 0.30-1.15 ppm(1-2). Bis(2-ethylhexyl) phthalate was found in the serum of 25 of 41 young (12-83 months) Puerto Rican girls with premature breast development at 187-2,098 ug/L(3). Bis(2-ethylhexyl) phthalate had a mean concentration of 0.067 ug/g in breast milk(4). Bis(2-ethylhexyl) phthalate was found in 65 of 84 newborn cord blood samples at a mean concentration of 1.19 ug/mL(5). The median concentration of mono(2-ethylhexyl) phthalate in urine samples from 36 Japanese people collected May to June 2004 was 5.0 ug/L; this translates to an exposure rate of 2.7 ug/kg/day of the parent compound bis(2-ethylhexyl) phthalate(6).

Bis(2-ethylhexyl) phthalate was measured in personal air samples of pregnant New York women at 0.05-0.41 ug/cu m in samples taken Mar to Sept 2000 and in pregnant Krakow, Poland women at 0.08-1.1 ug/cu m in samples taken Nov 2000 to Mar 2001(1).

Bis(2-ethylhexyl) phthalate (DEHP) degradation products mono(2-ethyl-5-hydroxyhexyl) phthalate (MeHHP) and mono(2-ethyl-5-oxohexyl) phthalate (MeOHP) were analyzed in urine to determine exposure. The ug/g creatinine was used to determine the ug/kg/day of DEHP consumption(1).[Table#1083]

Bis(2-ethylhexyl) phthalate (DEHP) degradation products mono(2-ethylhexyl) phthalate (MEHP), 5-mono hydroxyl isononyl phthalate (5OH-MEHP), 2-ethyl-5-oxohexyl phthalate (5oxo-MEHP), 2-ethyl-5-carboxylpentyl phthalate (5cx-MEPP) and 2-mono carboxyl isononyl phthalate (2cx-MEPP) were analyzed in urine, breast milk and cord blood to determine exposure(1). Urine samples from 100 pregnant women were collected in the third trimester (Dec 2001-Nov 2002). From this same population, urine samples from 30 two to three year olds (2003-2004) and 59 five to six year olds (2006-2007) were collected. All samples were collected from residents of central Taiwan(1).[Table#1084]

For more Body Burden (Complete) data for BIS(2-ETHYLHEXYL) PHTHALATE (6 total), please visit the HSDB record page.

Cancer Sites · 2 件

Hepatic

[in animals: liver tumors]

Interactions · 5 件

In studies of the effects of DEHP ingestion on the metabolism of ethanol, there was a distinct difference between the action of single doses of 1,500-7,500 mg/kg DEHP and the same doses given over a 7-day period ... . The single dose appeared to decrease the metabolism of intraperitoneal ethanol, given 18 hours after DEHP, as reflected by an increase in the ethanol-induced sleeping time of the exposed rats and inhibition of hepatic alcohol dehydrogenase activity. On the other hand, when DEHP was given for 7 days before the ethanol, the ethanol-induced sleeping time was decreased and the activities of both alcohol and aldehyde dehydrogenase were increased. This indicates the changes in sleeping time were the result of more rapid metabolic removal of the alcohol from the system in the rats treated with repeated doses of DEHP and slower metabolism in the rats given one dose.

... One hypothesis is that altered zinc homeostasis is a cause of teratogenicity following DEHP exposure. On GD 9 (9 days post-coitus), CD-1 mice were given corn oil (vehicle) or DEHP 800 mg/kg bw by gavage. ... Maternal liver expression of metallothionein (MT)-I and MT-Il, enzymes that sequester zinc in liver and thus lower blood levels, were increased at 3.0-4.5 hours following DEHP exposure and then began returning to baseline levels at 6 hours following exposure. Maternal liver expression of zinc transporter-1 (ZnT-1), a transmembrane protein involved in zinc efflux, was not affected by DEHP exposure. Exposure to DEHP resulted in a down-regulation of MT-I, MT-Il, and ZnT-1 expression in embryonic brain from 3 to 6 hours following exposure. There was no effect on visceral yolk sac. A dose-response study was conducted in which pregnant mice were gavaged on GD 9 with 0, 50, 200, or 800 mg DEHP/kg bw. Dams were killed, and maternal liver and embryonic brains were collected at 3 hours following exposure. ... Up-regulation of MT-I ... in maternal liver reached statistical significance at 200 mg/kg bw/day DEHP ... /and/ MT-Il ... at 800 mg/kg bw. ... In embryonic brain, reductions in MT-I and ZnT-1 were significant at 200 mg/kg bw, and reductions in MT-Il were significant at 50 mg/kg bw. ... /It was/ concluded that exposure of dams to DEHP during periods of organogenesis can alter the expression of key fetal enzymes involved in zinc homeostasis.

... Four-week-old /F344 rats/ ... were stimulated with diethyistilbestrol or with pregnant mare serum gonadotropin (PMSG) following which ovaries were removed and granulosa cells harvested. Cells were cultured in the presence of 500 nM testosterone and 200 ng/mL FSH. MEHP ... was added to cultures /for 48 hr/ ... A comparison with other phthalate monoesters showed a decrease in estradiol in the medium (controlled for protein content) with MEHP 100 or 200 uM (27.8 or 55.6 mg/L) but not with comparable molar concentrations of monomethyl, -ethyl, -propyl, -butyl, -pentyl, or -hexyl phthalate. Monopentyl phthalate was associated with a decrease in estradiol production at 400 uM. mRNA for aromatase was estimated in media after culture with MEHP 0, 25, 50, or 100 uM (0, 7.0, 13.9, or 27.8 mg/L). Graphically, there appeared to be a concentration-dependent decrease in estradiol concentration and in aromatase mRNA; pair-wise comparisons with control were statistically significant for the 100 uM concentration for estradiol and for the 50 and 100 uM concentrations for aromatase mRNA. The peroxisome proliferator Wy-14,643 also decreased estradiol and aromatase mRNA. Cholesterol side-chain cleavage enzyme was not altered by MEHP ... . Aromatase protein was decreased by MEHP at concentrations of 100 and 200 uM (27.8 and 55.6 mg/L). In a final experiment, granulosa cells were incubated for 48 hours with MEHP 0 or 200 uM (0 or 56 mg/L) and 8-bromo-cyclic adenosine monophosphate (8-Br-cAMP) added for the last 24 hours. mRNA for aromatase and cholesterol side-chain cleavage enzyme and medium progesterone levels were increased by 8-Br-cAMP in the absence of MEHP. In the presence of MEHP, mRNA for aromatase and medium estradiol levels were suppressed, but there was no suppression of P450 side-chain cleavage enzyme mRNA or progesterone. ... The results /were interpreted/ as consistent with transcriptional suppression of aromatase by MEHP independent of the FSH-cAMP pathway. ... A peroxisome proliferator-activated receptor (PPAR) pathway /was proposed/ as a candidate mechanism for MEHP suppression of granulosa cell steroidogenic function. /MEHP/

... Granulosa cells were harvested from 4-week-old Fisher rats 24 hours after injection of pregnant mare serum gonadotropin (PMSG). Cells were cultured for 48 hours with 500 nM testosterone and 200 ng/mL FSH with or without MEHP ... 50 uM (13.9 mg/L). ... MEHP in culture reduced aromatase mRNA by >40% compared to control. The addition of a peroxisome proliferator-activated receptor (PPAR)-gamma antagonist partially reversed the decrease in aromatase mRNA. PPAR-alpha and gamma agonists reduced aromatase mRNA to an extent similar to that after treatment with MEHP. To test the hypothesis that MEHP activated PPAR-gamma plus activated retinoic acid X receptor (RXR) results in aromatase suppression mediated by the PPAR-gamma:RXR heterodimer, cells were treated with MEHP plus RXR or RAR ligands. All treatments decreased aromatase, with significant additional suppression by MEHP when it was added with 9-cis-retinoic acid. To demonstrate that MEHP activity could be mediated through PPAR-alpha, MEHP treatment was shown to increase mRNA for 17 beta-hydroxysteroid dehydrogenase IV, which is inducible by PPAR-alpha. The addition of a PPAR-gamma antagonist did not alter the MEHP induction of 17 beta-hydroxysteroid dehydrogenase IV, suggesting MEHP activation of the alpha-isoform of PPAR. Both MEHP and a selective PPAR-alpha agonist, but not a selective PPAR-gamma agonist, increased the expression of Ah receptor, CYP1B1, and epoxide hydrolase. Cholesterol side-chain cleavage enzyme was not induced by MEHP or by either PPAR isoform agonist. Heart-type fatty acid-binding protein (H-FABP) was induced by MEHP and by each specific PPAR isoform agonist. ... /It was/ concluded that MEHP effects on granulosa cell gene expression, which would serve to decrease estrogen production, were mediated by both PPAR pathways. /MEHP/

For more Interactions (Complete) data for BIS(2-ETHYLHEXYL) PHTHALATE (21 total), please visit the HSDB record page.

Target Organs · 3 件

Cancer, Developmental (effects while organs are developing), Hepatic (Liver), Immunological (Immune System), Renal (Urinary System or Kidneys), Reproductive (Producing Children)

Hepatic

Eyes, respiratory system, central nervous system, liver, reproductive system, gastrointestinal tract

Health Effects · 1 件

Chronic and/or high levels of DEHP exposure may cause reproductive and developmental damage. This includes damaged sperm, delayed sexual maturity, and deficiencies in the development of male babies. DEHP may also cause liver and kidney damage, and is potentially carcinogenic. (L181, L182)

法規制情報

FDA RequirementsDioctylphthalate an indirect food additive for use only as a component of adhesives.
RCRA Requirements · 1 件

U028; As stipulated in 40 CFR 261.33, when 1,2-benzenedicarboxylic acid, bis(2-ethylhexyl) ester, as a commercial chemical product or manufacturing chemical intermediate or an off-specification commercial chemical product or a manufacturing chemical intermediate, becomes a waste, it must be managed according to Federal and/or State hazardous waste regulations. Also defined as a hazardous waste is any residue, contaminated soil, water, or other debris resulting from the cleanup of a spill, into water or on dry land, of this waste. Generators of small quantities of this waste may qualify for partial exclusion from hazardous waste regulations (40 CFR 261.5).

TSCA Requirements · 1 件

Pursuant to section 8(d) of TSCA, EPA promulgated a model Health and Safety Data Reporting Rule. The section 8(d) model rule requires manufacturers, importers, and processors of listed chemical substances and mixtures to submit to EPA copies and lists of unpublished health and safety studies. 1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester is included on this list. Effective date: 10/04/82; Sunset date: 10/04/92.

FIFRA Requirements · 1 件

As the federal pesticide law FIFRA directs, EPA is conducting a comprehensive review of older pesticides to consider their health and environmental effects and make decisions about their continued use. Under this pesticide reregistration program, EPA examines newer health and safety data for pesticide active ingredients initially registered before November 1, 1984, and determines whether the use of the pesticide does not pose unreasonable risk in accordance to newer saftey standards, such as those described in the Food Quality Protection Act of 1996. Pesticides for which EPA had not issued Registration Standards prior to the effective date of FIFRA '88 were divided into three lists based upon their potential for human exposure and other factors, with List B containing pesticides of greater concern than those on List C, and with List C containing pesticides of greater concern than those on List D. Bis(2-ethylhexyl) phthalate is found on List C. Case No: 3112; Case Status: No products containing the pesticide are actively registered ... The case /is characterized/ as "cancelled." Under FIFRA, pesticide producers may voluntarily cancel their registered products. EPA also may cancel pesticide registrations if registrants fail to pay required fees or make/meet certain reregistration commitments, or if EPA reaches findings of unreasonable adverse effects.; Active ingredient (AI): Bis(2-ethylhexyl) phthalate; AI Status: The active ingredient is no longer contained in any registered pesticide products ... "cancelled."

Atmospheric Standards · 1 件

Listed as a hazardous air pollutant (HAP) generally known or suspected to cause serious health problems. The Clean Air Act, as amended in 1990, directs EPA to set standards requiring major sources to sharply reduce routine emissions of toxic pollutants. EPA is required to establish and phase in specific performance based standards for all air emission sources that emit one or more of the listed pollutants. Bis(2-ethylhexyl)phthalate is included on this list.

CERCLA Reportable Quantities · 1 件

Persons in charge of vessels or facilities are required to notify the National Response Center (NRC) immediately, when there is a release of this designated hazardous substance, in an amount equal to or greater than its reportable quantity of 100 lb or 45.4 kg. The toll free number of the NRC is (800) 424-8802. The rule for determining when notification is required is stated in 40 CFR 302.4 (section IV. D.3.b).

安全データ

OEB
B
OEL
TWA: 5 mg/m3, STEL: 10 mg/m3
wgk
1
IDLA
5,000 mg/m3
tsca
TSCA listed
rtecs
TI0350000

化学と産業

薬理情報

Mechanism of Action · 4 件

... A single dose of 1000 mg/kg bw MEHP (> 97% purity) in corn oil was administered by gavage to 5-week-old Sprague-Dawley rats, 28-day-old wild-type C57CL/6 mice, or 28-day-old gld mice. The gld mice express a dysfunctional fasL protein, which cannot bind to the fas receptor to initiate apoptosis. ... Following MEHP exposure, apoptosis was found to occur primarily in spermatocytes in both wild-type and gld mice. In wild-type mice, germ cell apoptosis was significantly increased from 6 to 48 hours following MEHP exposure. Apoptotic activity peaked between 12 and 24 hours with 5-fold increases compared to baseline levels. A significant ~2-fold increase in apoptosis compared to baseline levels was observed at 12 and 48 hours following MEHP exposure of gld mice. In both groups of mice, apoptotic activity returned to baseline levels by 96 hours following exposure. Western blot analyses revealed that fas expression significantly increased in wild-type mice (~ 3-fold) at 3 hours following MEHP exposure. There was no significant alteration in fas expression following MEHP exposure in gld mice. Expression of DR4, DR5, and DR6 proteins /which are fas-independent death receptors in the tumor necrosis factor (TNF) superfamily/ occurred in both wild-type and gld mice, but MEHP exposure did not increase expression in either strain. DR5 but not DR4 expression significantly increased in Sprague-Dawley rat testes (~1.5-fold) at 1.5 and 3 hours following MEHP exposure. Procaspase 8 cleavage products, downstream receptor-mediated signals of apoptotic pathways, were detected in testes of wild-type and gld mice, but expression was significantly increased only in gld mice at 6 hours following MEHP exposure. Electrophoretic mobility shift assays demonstrated that DNA binding of NFkappa3, a receptor-mediated downstream signal possibly involved in cell death or survival, was generally reduced in wild-type mice but upregulated in gld mice following MEHP exposure. ... /It was/ concluded that these findings demonstrate that germ-cell related death receptors and downstream signaling products appear to respond to MEHP-induced cell injury ... /MEHP/

Sprague-Dawley male rats were treated orally with 250, 500, or 750 mg/kg/d Di(2-ethylhexyl) phthalate (DEHP) for 28 days, while control rats were given corn oil. The levels of cell cycle regulators (pRb, cyclins, CDKs, and p21) and apoptosis-related proteins were analyzed by Western blot analysis. The role of PPAR-gamma (PPAR-gamma), class B scavenger receptor type 1 (SR-B1), and ERK1/2 was further studied to examine the signaling pathway for DEHP-induced apoptosis. Results showed that the levels of pRB, cyclin D, CDK2, cyclin E, and CDK4 were significantly lower in rats given 500 and 750 mg/kg/d DEHP, while levels of p21 were significantly higher in rat testes. Dose-dependent increases in PPAR-gamma and RXRalpha proteins were observed in testes after DEHP exposure, while there was a significant decrease in RXRgamma protein levels. In addition to PPAR-gamma, DEHP also significantly increased SR-B1 mRNA and phosphorylated ERK1/2 protein levels. Furthermore, DEHP treatment induced pro-caspase-3 and cleavage of its substrate protein, poly(ADP-ribose) polymerase (PARP), in a dose-dependent manner. Data suggest that DEHP exposure may induce the expresson of apoptosis-related genes in testes through induction of PPAR-gamma and activation of the ERK1/2 pathway.

Global gene expression profiling combined with an evaluation of Gene Ontology (GO) and pathway mapping tools /was used/ ... for identifying the molecular pathways and processes affected /to examine/ ... the acute effects caused by the non-genotoxic carcinogen and peroxisome proliferator (PP) diethylhexylphthalate (DEHP) in the mouse liver as a model system. Consistent with what is known about the mode of action of DEHP, /the/ GO analysis of transcript profiling data revealed a striking overrepresentation of genes associated with the peroxisomal cellular component, together with genes involved in carboxylic acid and lipid metabolism. Furthermore ... gene expression changes associated with additional biological functions, including complement activation, hemostasis, the endoplasmic reticulum overload response, and circadian rhythm /were revealed/. Together, these data reveal potential new pathways of PP action and shed new light on the mechanisms by which non-genotoxic carcinogens control hepatocyte hypertrophy and proliferation. ...

... Peroxisome proliferator-activated receptor alpha (PPAR-alpha), the nuclear receptor, is a member of the steroid hormone receptor superfamily and binds to DNA as a heterodimer with the retinoid X receptor (RXR). Peroxisome proliferator response elements (PPREs) have been found in genes for both peroxisomal and microsomal fatty acid-oxidizing enzymes. ... The species differences /responding to peroxisome proliferators, eg DEHP/, particularly with respect to humans compared to rats and mice, can be potentially attributed to ... the level of expression and functional capability of PPAR-alpha, the presence or absence of active PPREs in the promoter region of specific genes, and other aspects of interaction with transcriptional regulatory proteins. ... Marked species differences in the expression of PPAR-alpha mRNA have been demonstrated between rodent and human liver, with the latter expressing 1-10% of the levels found in mouse or rat liver ... PPAR-alpha protein expression /in human livers/ contained less than 10% of the level in mice. ... In most human samples studied, it was found that PPREs are mainly bound by other competing proteins that may block peroxisome proliferator responsiveness. In addition, the low levels of PPAR-alpha protein detected in human liver were lower than those estimated from RNA analysis and this was explained by the finding that a significant fraction of PPAR-alpha mRNA is mis-spliced in human liver. ... The truncated PPAR-alpha mRNA accounted for 25-50% of total PPAR-alpha mRNA in 10 human liver samples, while no truncated PPAR-alpha mRNA was found in livers of rats and mice. The truncated human PPAR-alpha mRNA was expressed in vitro, where it was shown to (a) fail to bind to PPRE, a necessary step for gene activation and (b) interfere with gene activation by expressed full-length human PPAR-alpha, in part due to titration of coactivator CREB-binding protein, an additional element of transcriptional regulation. ... Differential species sensitivity to peroxisome proliferators could depend on gene-specific factors. In the case of peroxisomal acyl-coenzyme A oxidase, the promoter regions containing PPRE responsible for transcriptional activation of the rodent gene are not present in the promoter region of the human gene ... The absence of a significant response of human liver to induction of peroxisome proliferation and hepatocellular proliferation is explained by several aspects of PPAR-alpha-mediated regulation of gene expression. ... Overall, these findings indicate that the increased incidence of liver tumors in mice and rats treated with di(2-ethylhexyl) phthalate results from a mechanism that does not operate in humans.

Biological Half-Life · 5 件

The levels of DEHP and MEHP in plasma have been studied in newborn infants given blood exchange transfusions. In one case the MEHP half-life was the same as for DEHP (about 12 hr), indicating that the hydrolysis of DEHP was the rate-limiting metabolic step. However, in other children the half-time of MEHP was longer than that of DEHP ... .

After the iv admin of radiolabelled DEHP, at least two elimination phases of radioactivity, with short half-lives (4.5-9 and 22 min, respectively), were observed in rat blood ... After 7 wk of oral admin, the elimination phase in the liver was considerably slower, the half-life being 3-5 days ... No accumulation of DEHP or MEHP was observed when the dosage was 2.8 g/kg/day for 7 days ... nor was there any in a long-term (5-7 weeks) feeding study at a dose level of 1 or 5 g/kg diet (corresponding to a daily dose of about 50 and 250 mg/kg bw) ... .

... The mean plasma elimination halflives of MEHP were 3.9, 3.1 and 2.8 hours, respectively for 25, 40 and 60 days old /Sprague-Dawley/ rats. ...

Two healthy male volunteers (47 and 34 years old) received 30 mg DEHP (> 99% pure) as a single dose or 10 mg/day of DEHP for 4 days ... A urinary elimination half-life of about 12 hours was estimated. ...

For more Biological Half-Life (Complete) data for BIS(2-ETHYLHEXYL) PHTHALATE (9 total), please visit the HSDB record page.

Metabolism/Metabolites · 6 件

It is hypothesized that the teratogen di(2-ethylhexyl) phthalate (DEHP) acts by in vivo hydrolysis to 2-ethylhexanol (2-EXHO), which in turn is metabolized to 2-ethylhexanoic acid (2-EXHA), the proximate teratogen. Teratological studies were conducted with Wistar rats, with administration of these agents on day 12 of geatation. On an equimolar basis DEHP was least potent, 2-ethylhexanol was intermediate, and 2-ethylhexanoic acid was the most potent of the three agents, which is consistent with the hypothesis. Similarity in the types of defects found with these agents also suggests a common mechanism, with 2-ethylhexanoic acid as the proximate teratogen.

When admin either iv or orally, it is rapidly metabolized to derivatives of mono-(2-ethylhexyl)-phthalate. ...

Rats have been reported to metabolize di(2-ethylhexyl) phthalate to 5-keto-2-ethylhexyl phthalate, 5-carboxyl-2-ethylpentyl phthalate, 5-hydroxy-2-ethylhexyl phthalate & 2-carboxymethylbutyl phthalate after initial hydrolysis to mono(2-ethylhexyl) phthalate.

African green monkeys & ferrets, in contrast to rats, excrete di(2-ethylhexyl) phthalate metabolites in urine as glucuronide derivatives of mono(2-ethylhexyl) phthalate. Glucuronidation appears to occur at the free carboxyl group, while 2-ethylhexyl substituent is oxidized to an alcohol.

For more Metabolism/Metabolites (Complete) data for BIS(2-ETHYLHEXYL) PHTHALATE (41 total), please visit the HSDB record page.

DEHP is mainly absorbed via ingestion. It is hydrolyzed in the small intestine and absorbed as monoethylhexylphthalate (MEHP) and 2-ethylhexanol, then likely distributed to the adipose tissues and kidneys. MEHP is further metabolized via numerous oxidative reactions, resulting in the formation of 30 or more metabolites, some of which can be conjugated with glucuronic acid for excretion. Oxidation of 2-ethylhexanol primarily yields 2-ethylhexanoic acid and several keto acid derivatives. Most DEHP metabolites are excreted in the urine as glucuronide conjugates, while unmetabolized DEHP is excreted in the faeces. (L181)

Absorption, Distribution and Excretion · 5 件

When administered either IV or orally ... it is mainly excreted in urine and bile.

It appeared to be rapidly cleared from blood, most being removed within 5-7 hr of completion of dialysis.

In one study of subjects who received hemodialysis, blood transfusions or blood that had previously been in contact with polyvinyl chloride medical products, di(2-ethylhexyl) phthalate was found at the following levels (ug/g wet tissue): brain (1.9), heart (0.5), kidney (1.2-2.2), liver (1.5-4.6), lung (1.4-2.2) & spleen (2.2-4.7).

The levels of di(2-ethylhexyl) phthalate in neonatal heart tissue from infants who had undergone umbilical catheterization, either alone or with admin of blood products, were reported to be higher than those in similar tissue from untreated infants.

For more Absorption, Distribution and Excretion (Complete) data for BIS(2-ETHYLHEXYL) PHTHALATE (67 total), please visit the HSDB record page.

用途と製造

Uses · 6 件

Congress has permanently banned three types of phthalates (DEHP, DBP, BBP) in any amount greater than 0.1 percent (computed for each phthalate, individually) in (1) children's toys and (2) certain child care articles. di-(2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP), or benzyl butyl phthalate (BBP).

For bis(2-ethylhexylphthalate) (USEPA/OPP Pesticide Code: 295200) there are 0 labels match. /SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./

The active ingredient is no longer contained in any registered pesticide products ... "cancelled."

Plastics may contain from 1 to 40% di(2-ethylhexyl) phthalate by weight and are used in consumer products such as imitation leather, rainwear, footwear, upholstery, flooring, wire and cable, tablecloths, shower curtains, food packaging materials and children's toys. ... Di(2-ethylhexyl) phthalate is also used as a hydraulic fluid and as a dielectric fluid (a non-conductor of electric current) in electrical capacitors.

For more Uses (Complete) data for BIS(2-ETHYLHEXYL) PHTHALATE (19 total), please visit the HSDB record page.

Plastics -> Typical concentration range in plastic materials -> 2.0 - 35.0%

Impurities... /Data/ indicate a high purity level (99.7%). The impurities found are mainly other phthalates.
U.S. Exports(1986) 5.40X10+9 g
U.S. Imports(1986) 2.70X10+9 g
U.S. Production · 6 件

2023: 10,000,000 - <25,000,000 lb

(1982) 251,067,000 lbs

(1977) 1.77X10+11 G

(1982) 1.14X10+11 G

(1986) 1.30X10+11 g

For more U.S. Production (Complete) data for BIS(2-ETHYLHEXYL) PHTHALATE (9 total), please visit the HSDB record page.

Consumption Patterns · 2 件

PLASTICIZER FOR POLYVINYL CHLORIDE, 87%; PLASTICIZER FOR OTHER VINYL RESINS, 7%; OTHER PLASTICIZER USE, 3%; OTHER NON-PLASTICIZER USE, 3% (1979 EST)

Polyvinyl chloride, 95%; other, 5% (1986) /estimated/

応用分野 · 9 件

解説フタル酸ビス(2-エチルヘキシル),フタルサンビスエチルヘキシル,C24H38O4(390.56).略称DEHP.Pterocarpus angolensisの心材から得られた.無水フタル酸とエチルヘキシルアルコールとを酸の存在下に加熱縮合させ製造される.無色の油で,凝固点-46 ℃,沸点231 ℃(666 Pa).d250.9861.n25D1.483.粘度81 cP(20 ℃).蒸気圧176 Pa(200 ℃).有機溶媒に可溶.ビニル系樹脂と相容性がよい.ポリ塩化ビニル,そのほかの樹脂,合成ゴムの可塑剤としてもっとも大量に用いられた.しかし,現在では環境汚染物質として危ぐされている.

用途可塑剤、PCB代替材、電子工業充填材。

用途DOPは塩化ビニル樹脂用可塑剤として、最も広範囲に使用されている代表的な汎用可塑剤です。 DOP-MSとは殆ど無臭に近いDOPですが、DOPのすぐれた点はすべて保持しています。 DOP-MSは可塑剤として、低臭が求められる軟質塩ビ製品に適しています。

用途可塑剤(主に塩ビ)、電線被覆材の製造

用途可塑剤、染料、顔料、塗料、インク、接着剤、潤滑剤

用途環境試料中のフタル酸エステルの分析(HPLC)用標準品、GC-MS分析標準品。

用途本物質の主な用途は、可塑剤として塩化ビニル製品(シート、レザー、電線被覆材、農業用ビニルフィルム等)等に添加されている

使用Bis(2-ethylhexyl) phthalate is commonly used plasticizing agent for PVCs, which as such is a component of blood bank bags, surgical tubing, and other products including food wrappers and children’s toys.

一般的な説明Colorless to pale yellow oily liquid. Nearly odorless.

調製方法 · 2 件

DEHP is commercially produced via esterification of phthalic acid anhydride and 2-ethylhexanol. Esterification is completed with an acid or metal catalyst or with no catalyst at high temperature.

純化方法Wash the ester with Na2CO3 solution, then shake it with water. After the resulting emulsion has been broken by adding ether, the ethereal solution is washed twice with water, dried (CaCl2), and evaporated. The residual liquid is distilled several times under reduced pressure, then stored in a vacuum desiccator over P2O5 [French & Singer J Chem Soc 1424 1956]. [Beilstein 9 IV 3184.]

サプライヤー50 社

国药集团化学试剂有限公司86-21-63210123 · [email protected]
北京华美互利生物化工010-56205725 · [email protected]
梯希爱(上海)化成工业发展有限公司021-67121386 · [email protected]
衢州润东化工有限公司0570-8789886 18892685668 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]

補足説明

定義本品は、フタル酸と2-エチルヘキシルアルコールのジエステルであり、次の化学式で表される。

定義ChEBI: A phthalate ester that is the bis(2-ethylhexyl) ester of benzene-1,2-dicarboxylic acid.

関連反応

2 件

関連ノート

読み込み中…