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HCID 15433作成日：2026年10月27日

ラウリルジメチルアミンN-オキシド

N,N-ジメチルドデシルアミン=N-オキシド · ラウリルジメチルアミンN-オキシド · N,N-ジメチルドデシルアミンオキシド · ドデシルジメチルアミンオキシド · N-ラウリル-N,N-ジメチルアミンオキシド · N-ドデシル-N,N-ジメチルアミンオキシド · ジメチルドデシルアミンN-オキシド · アンモニックスLO

https://huagongshe.com/ja/chemical/15433

ラウリルジメチルアミンN-オキシド の分子構造式

識別子と物理属性

CAS No.1643-20-5
分子式C14H31NO
平均分子量229.4 g/mol
単同位体質量229.24056461 g/mol
SMILESCCCCCCCCCCCC[N+](C)(C)[O-]
InChIKeySYELZBGXAIXKHU-UHFFFAOYSA-N
PubChem CID15433
ChEMBLCHEMBL1233973
ChEBICHEBI:131762
EC No.216-700-6
DTXSIDDTXSID1020514
現地名ラウリルジメチルアミンN-オキシド

化学・物理的性質

XLogP5.3
極性表面積18.1
水素結合供与体数0
水素結合受容体数1
回転可能結合数11
重原子数16
形式電荷0
複雑度146
物質分類Other Uses -> Emulsifiers/Surfactants
医薬品Pharmaceuticals -> Listed in ZINC15
化粧品Cosmetic ingredients (Lauramine Oxide) -> CIR (Cosmetic Ingredient Review)Hair conditioningAntistaticCleansingSurfactantViscosity controllingFoam boostingHydrotrope
香料Fragrance Ingredient (Dodecyldimethylamine oxide) -> IFRA transparency List
SurfactantsSurfactant
Color/FormVery hygroscopic needles from dry toluene.
溶解度In water, 190,000 mg/L at 25 °CEthanol:15.0(Max Conc. mg/mL)65.38(Max Conc. mM)DMF:3.0(Max Conc. mg/mL)1.31(Max Conc. mM)DMSO:0.1(Max Conc. mg/mL)0.44(Max Conc. mM)PBS (pH 7.2):0.1(Max Conc. mg/mL)0.44(Max Conc. mM)水に不溶。
Endocrine DisruptorsPotential endocrine disrupting compound
DecompositionWhen heated to decomposition it emits very toxic fumes of /chloride, ammonium, and nitrogen oxides./
融点266 to 268 °F (NTP, 1992)130.5 °C132-133 °C(lit.)
蒸気圧0.00000006 [mmHg]0Pa at 25℃
Physical DescriptionDimethyldodecylamine-n-oxide is a crystalline solid.LiquidCBIHighly hygroscopic solid[HSDB]
沸点371.32°C (rough estimate)
密度0.996 g/mL at 20 °C
屈折率n20/D 1.378
引火点113°C (closed cup)(235
貯蔵条件-20°C
外観・状態A crystalline solid
pKa（酸解離定数）4.79±0.40(Predicted)
色White to off-white
比重0.97
pH7.0-9.0 (25°C, 0.1M in H2O)
BRN1769927
ヘンリー定数1.5×105 mol/(m3Pa) at 25℃, HSDB (2015)
安定性安定。強力な酸化剤とは相容れない。可燃性。
化粧品成分の機能クレンジング界面活性剤 - 洗浄香料ヘアコンディショニング帯電防止界面活性剤 - 泡立ち促進剤界面活性剤 - ハイドロトロープ粘度制御
InChI1S/C14H31NO/c1-4-5-6-7-8-9-10-11-12-13-14-15(2,3)16/h4-14H2,1-3H3
InChIKeySYELZBGXAIXKHU-UHFFFAOYSA-N
SMILESCCCCCCCCCCCC[N+](C)([O-])C
LogP（分配係数）1.85 at 20℃
EPAの化学物質情報Lauryldimethylamine oxide (1643-20-5)

化学的特性

Clear yellow Liquid

安全性と法規制

GHS 分類This chemical does not meet GHS hazard criteria for 3.1% (35 of 1145) of reports.DangerH302 (30.8%): Harmful if swallowed [Warning Acute toxicity, oral]P264, P264+P265, P270, P273, P280, P301+P317, P302+P352, P305+P354+P338, P317, P321, P330, P332+P317, P362+P364, P391, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 1145 reports by companies from 32 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
規制情報Chemical: 1-Dodecanamine, N,N-dimethyl-, N-oxideRegulation (EC) No 1935/2004 (amended)1-Dodecanamine, N,N-dimethyl-, N-oxide is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1-Dodecanamine, N,N-dimethyl-, N-oxide 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)REACH registered substance: Dodecyldimethylamine oxide (EC: 216-700-6)Dodecyldimethylamine oxide: Does not have an individual approval but may be used under an appropriate group standard
輸送ラベル（DOT）Poison
火災危険Flash point data for this compound are not available. It is probably nonflammable. (NTP, 1992)
健康有害性Excerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:
有害性の概要Caused severe skin irritation (including severe erythema and edema, fissuring with bleeding, and necrosis) in rabbit studiesHigh dose animal feeding studies produced no significant adverse effects[HSDB] Amine oxides are metabolized and rapidly excreted after ingestionEffects on skin are: 1% solutions not irritating, 5% solutions moderately irritating, and 30% solutions severely irritatingNo evidence of skin sensitizationNo evidence of carcinogenic response or reproductive toxicity[OECD SIDS] A corrosive substance that can cause injury to the skin, eyes, and respiratory tractInhalation may cause chemical pneumonitis[MSDSonline]
反応性グループAmines, Phosphines, and Pyridines

用途

使用

LDAO is suitable to use in crystallization of membrane proteins. It is also suitable to enhance the detection of high molecular weight proteins.

一般的な説明

Crystalline solid.

製法・合成法

純化方法

Crystallise the oxide from acetone or ethyl acetate. [Bunton et al. J Org Chem 52 3832 1987, Beilstein 4 III 410, 4 IV 798.]

Special ReportsCosmetic Ingredient ReviewFinal Report on the Safety Assessment of Lauramine Oxide and Stearamine OxideJournal of American College of Toxicology 13 (3): 231-45 (1994)
EPA Safer ChemicalChemical: N,N-Dimethyldodecylamine oxide
Reactivity ProfileDIMETHYLDODECYLAMINE-N-OXIDE is less basic than the tertiary amine from which it is derived, but still reacts with strong acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Air and Water ReactionsHygroscopic (NTP, 1992).
Hazard Classes and CategoriesAcute Tox. 4 (30.8%)Acute toxicity (Oral) - Category 4Skin corrosion/irritation - Category 2
消火Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)
応急処置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.
非火災時の漏出対応SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
処分方法SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air qualitypotential migration in soil or watereffects on animal, aquatic, and plant lifeand conformance with environmental and public health regulations.
Isolation and EvacuationExcerpt from ERG Guide 151 [Substances - Toxic (Non-Combustible)]:
Personal Protective Equipment (PPE)RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)
環境中動態TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 5.5(SRC), determined from a water solubility of 190,000 mg/L(2) and a regression-derived equation(3), indicates that lauramine oxide is expected to have very high mobility in soil(SRC). Volatilization of lauramine oxide from moist soil surfaces is not expected to be an important fate process(SRC) given an estimated Henry's Law constant of 6.6X10-11 atm-cu m/mole(SRC), using a fragment constant estimation method(4). Lauramine oxide is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 6.2X10-8 mm Hg(SRC), determined from a fragment constant method(5). In aqueous biodegradation screening tests, lauramine oxide was 100% removed after 28 days as measured by liquid chromatography-mass spectrometry(6), suggesting that biodegradation in soil is an important fate process(SRC).AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 5.5(SRC), determined from a water solubility of 190,000 mg/L(2) and a regression-derived equation(3), indicates that lauramine oxide is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is not expected(3) based upon an estimated Henry's Law constant of 6.6X10-11 atm-cu m/mole(SRC), developed using a fragment constant estimation method(4). According to a classification scheme(5), an estimated BCF of 0.7(SRC), from its water solubility(2) and a regression-derived equation(3), suggests the potential for bioconcentration in aquatic organisms is low(SRC). In aqueous biodegradation screening tests, lauramine oxide was 100% removed after 28 days as measured by liquid chromatography-mass spectrometry(6), suggesting that biodegradation in water is an important fate process(SRC).ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), lauramine oxide, which has an estimated vapor pressure of 6.2X10-8 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), will exist in both the vapor and particulate phases in the ambient atmosphere. Vapor-phase lauramine oxide is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC)the half-life for this reaction in air is estimated to be 14.1 hours(SRC), calculated from its rate constant of 2.7X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3) Particulate-phase lauramine oxide may be removed from the air by wet or dry deposition(SRC). Lauramine oxide does not contain chromophores that absorb at wavelengths >290 nm(4) and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC).
有害作用Dermatotoxin - Skin burns.
毒性の概要On the basis of the available animal and clinical data presented in this report, the CIR Expert Panel concludes that Lauramine Oxide and Stearamine Oxide are safe as cosmetic ingredients for "rinse-off" products under present conditions of use. For use in "leave-on" products, the Expert Panel concludes that Lauramine Oxide should be limited to 3.7% and Stearamine Oxide to 5%.Safe for use in cosmetics, with qualifications
Soil Adsorption/MobilityThe Koc of lauramine oxide is estimated as 5.5(SRC), using a water solubility of 190,000 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that lauramine oxide is expected to have very high mobility in soil.
Artificial Pollution SourcesLauramine oxide's production and use as a surfactant in dishwasher detergent, shampoo and soap(1), as a foam stabilizer, and textile antistatic agent(2) may result in its release to the environment through various waste streams(SRC).
Environmental BiodegradationAEROBIC: Lauramine oxide, present at 100 mg/L, was 100% removed in 4 weeks as measured by liquid chromatography-mass spectrometry, using an activated sludge inoculum at 30 mg/L in the Japanese MITI test(1). An inherent biodegradability test using an activated sludge inoculum at 100 mg/L and lauramine oxide at 30 mg/L showed the compound to reach 88% of its theoretical total organic carbon in 4 weeks(1).
Environmental BioconcentrationAn estimated BCF of 0.7 was calculated for lauramine oxide(SRC), using a water solubility of 190,000 mg/L(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
Volatilization from Water/SoilThe Henry's Law constant for lauramine oxide is estimated as 6.6X10-11 atm-cu m/mole(SRC) using a fragment constant estimation method(1). This Henry's Law constant indicates that lauramine oxide is expected to be essentially nonvolatile from water surfaces(2). Lauramine oxide's Henry's Law constant indicates that volatilization from moist soil surfaces is not likely to occur(SRC). Lauramine oxide is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 6.2X10-8 mm Hg(SRC), determined from a fragment constant method(3).
Non-Human Toxicity Excerpts/LABORATORY ANIMALS: Acute Exposure/ The ocular irritation potential of formulations containing 0.3% active lauramine oxide was evaluated by instilling 10 uL into the conjunctival sac of New Zealand White rabbits. The eyes of some rabbits were rinsed with distilled water. Irritation was scored according to the method of Draize (maximum possible score: 110). Slight irritation of the conjunctivae was observed in all unrinsed eyes and in two of three rinsed eyes at the 24-hr grading period. The maximum average score was 2.0 for the animals with unrinsed eyes, and 1.3 for those whose eyes were rinsed. All eyes were clear after 48 hr./LABORATORY ANIMALS: Acute Exposure/ The primary dermal irritation potential of three formulations, each containing 30% lauramine oxide, was evaluated using New Zealand white rabbits. Three male and three female rabbits had 0.5 mL of each formulation applied under occlusive patches to separate sites on their clipped backs for 24 hr. The sites were rinsed after patch removal and were scored for erythema, eschar, and edema at the time of removal and 48 hr later. The primary dermal indices (maximum possible score: 8) were 7.0, 7.2, and 7.6. Moderate to severe erythema and edema, two cases of necrosis, and one case of necrosis and fissuring with bleeding were observed at the 24-hr grading period. At the 72-hr reading, ... severe erythema and edema, eschar, fissuring with bleeding, and necrosis and/or thickened skin /did occur/./LABORATORY ANIMALS: Acute Exposure/ Liquid droplet aerosol /formulation containing 0.3% active lauramine oxide/ at concentrations of 0.2, 1.0, and 5.2 mg/L were tested on three groups of four male Swiss-Webster mice. Only the heads of the mice were exposed to the aerosol. The average respiratory rate was monitored using plethysmography 5 min before, 10 min during, and 10 min after each exposure, and the percentage change in respiratory rate was calculated. A decrease in respiratory rate was considered a response to upper airway irritation. A transient decrease was observed in the respiratory rate of the 1.0 mg/L exposed group, but this was not considered significant because no signs of irritation were seen at greater exposure concentrations. The groups treated with 1.0 mg/L and 5.2 mg/L had a 6% decrease in their average respiratory rates. However, these decreases were not attributed to upper airway irritation because the respiratory rates were even lower during the postexposure recovery period. No decrease in respiratory rate was observed in the 0.2 mg/L exposed mice./LABORATORY ANIMALS: Acute Exposure/ The acute inhalation toxicity of a liquid droplet aerosol formulation containing 0.3% active lauramine oxide was evaluated. Five female and five male albino Sprague-Dawley-derived rats were exposed for 4 hr to this aerosol at a concentration of 5.3 mg/L. The Equivalent Aerodynamic Diameter of the aerosol was 3.6 um with a geometric standard deviation of 1.91. The animals were observed during the exposure and two times daily for 14 days, and body weights were recorded before exposure and on days 1, 3, 7, and 14 postexposure. At necropsy, the major organs in the abdominal and thoracic cavities were weighed and observed. No deaths occurred during the study and all the rats appeared normal. A slight drop in body weight was observed in the males on day 1, but weight was gained normally for the remainder of the study. The weight gain in the females was normal. The organ weights were all within the anticipated normal control ranges for both sexes. No exposure-related pharmacotoxic signs were evident in any of the organs. The 4-hr LD50 for this aerosol was greater than 5.3 mg/L nominal.For more Non-Human Toxicity Excerpts (Complete) data for LAURAMINE OXIDE (12 total), please visit the HSDB record page.
Environmental Abiotic DegradationThe rate constant for the vapor-phase reaction of lauramine oxide with photochemically-produced hydroxyl radicals has been estimated as 2.7X10-11 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 14.1 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). Lauramine oxide is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions(2). Lauramine oxide does not contain chromophores that absorb at wavelengths >290 nm(2) and therefore is not expected to be susceptible to direct photolysis by sunlight(SRC).
Probable Routes of Human ExposureNIOSH (NOES Survey 1981-1983) has statistically estimated that 91,001 workers (38,251 of these were female) were potentially exposed to lauramine oxide in the US(1). Occupational exposure may occur through dermal contact with this compound at workplaces where lauramine oxide is produced or used. The general population may be exposed to lauramine oxide via dermal contact with this compound and consumer products containing lauramine oxide(SRC).
Environmental Fate/Exposure SummaryLauramine oxide's production and use as a surfactant in dishwasher detergent, shampoo and soap, as a foam stabilizer, and textile antistatic agent may result in its release to the environment through various waste streams. If released to air, an estimated vapor pressure of 6.2X10-8 mm Hg at 25 °C indicates lauramine oxide will exist in both the vapor and particulate phases in the atmosphere. Vapor-phase lauramine oxide will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicalsthe half-life for this reaction in air is estimated to be 14.1 hours. Particulate-phase lauramine oxide will be removed from the atmosphere by wet or dry deposition. Lauramine oxide does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight. If released to soil, lauramine oxide is expected to have very high mobility based upon an estimated Koc of 5.5. Volatilization from moist soil surfaces is not expected to be an important fate process based upon an estimated Henry's Law constant of 6.6X10-11 atm-cu m/mole. In aqueous biodegradation screening tests, lauramine oxide was 100% removed after 28 days as measured by liquid chromatography-mass spectrometry, suggesting that biodegradation in soil and water is an important fate process. If released into water, lauramine oxide is not expected to adsorb to suspended solids and sediment based upon the estimated Koc. Volatilization from water surfaces is not expected to be an important fate process based upon this compound's estimated Henry's Law constant. An estimated BCF of 0.7 suggests the potential for bioconcentration in aquatic organisms is low. Hydrolysis is not expected to be an important environmental fate process since this compound lacks functional groups that hydrolyze under environmental conditions. Occupational exposure to lauramine oxide may occur through dermal contact with this compound at workplaces where it is produced or used. The general population may be exposed to lauramine oxide via dermal contact with this compound in consumer products containing lauramine oxide. (SRC)
F3-10
水環境危害等級（WGK）2
TSCA 収載状態TSCA listed
RTECS 番号JR6650000
輸送番号（UN）UN 3259 8/PG 2
毒性mouse,LD50,intraperitoneal,375mg/kg (375mg/kg),French Medicament Patent Document. Vol. #4264M,
税関コード29299090
危険文句（R）34-52/53
化審法優先評価化学物質
危険表示C
安全措置（S）26-36/37/39-45-27
危険等級8Acute Tox. 4 OralAquatic Acute 1Aquatic Chronic 2Eye Dam. 1Skin Irrit. 2
包装等級III
環境リスク評価N,N-ジメチルドデシルアミン=N=オキシド(1643-20-5)
貯蔵分類11 - Combustible Solids
有害物質データ1643-20-5(Hazardous Substances Data)