2-Ethyl-1,3-Hexanediol

Cosmetic ingredients (Ethyl Hexanediol) -> CIR (Cosmetic Ingredient Review)

Solvent

0.9325 @ 22 °C/4 °C

FAINT ODOR OF WITCH HAZEL; DISTILLATION RANGE 241-249 °C; DENSITY: 0.939-0.943 @ 20 °C/20 °C /CRUDE/

0.9422 @ 20°C

SLIGHTLY OILY LIQ

COLORLESS LIQUID

SOL IN WATER 0.6% WT/WT; SOLUBILITY OF WATER IN ETHOHEXADIOL 10.8% WT/WT; SOL IN ETHANOL, ISOPROPANOL, PROPYLENE GLYCOL, CASTOR OIL

MISCIBLE WITH CHLOROFORM, DIETHYL ETHER

127 °C

260 °F (127 °C) (OPEN CUP)

244.2 °C @ 760 MM HG

243.1 °C @760 [mm Hg]

-40 °C

-40 °C

Danger

H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

P264+P265, P280, P305+P354+P338, and P317 (click each P-code to see the statement)

Danger

H318 (100%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

P264+P265, P280, P305+P354+P338, and P317 (click each P-code to see the statement)

Chemical: 1,3-Hexanediol, 2-ethyl-

1,3-Hexanediol, 2-ethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of 1,3-Hexanediol, 2-ethyl- 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: 30-03-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/13598

Octylene glycol: Does not have an individual approval but may be used under an appropriate group standard

A moderate eye and mucous membrane irritant; Skin absorption may cause CNS depression; [HSDB] Produces birth defects when given to rats in high doses; No data on human exposure; [REPROTOX] Effects in high-dose animal studies include ataxia, somnolence, and liver changes; [RTECS] An irritant; May cause serious injury to eyes; May be absorbed through skin; [MSDSonline]

1 - Materials that, under emergency conditions, can cause significant irritation.

1 - Materials that must be preheated before ignition can occur. Materials require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur.

0 - Materials that in themselves are normally stable, even under fire conditions.

Eye Dam. 1 (100%)

Eye damage - category 1

Serious eye damage/eye irritation - Category 2A

Eye Dam. 1

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

4.2 [mg/m3]

46 [mg/m3]

280 [mg/m3]

... MODERATELY IRRITATING TO EYES, MUCOUS MEMBRANES, BUT NOT TO SKIN. INGESTION CAUSES CNS DEPRESSION.

ONCE ABSORBED /THROUGH SKIN/ IT CAUSES /CNS DEPRESSION/ BUT LITTLE ORGANIC INJURY.

TWO HUNDRED TWENTY-THREE HUMAN VOLUNTEERS WERE PATCH TESTED FOR SENSITIZATION WITH THE UNDILUTED PRODUCT. THREE ... DEVELOPED MILD SKIN REDDENING; OTHERWISE NO SIGNIFICANT SIGNS OF SENSITIZATION OCCURRED.

WHEN TESTED AS A REPELLENT IN STICK FORMULATIONS CONTAINING SODIUM STEARATE, NONE SHOWED SIGNS OF IRRITATION, SENSITIZATION, OR FATIGUING OF THE SKIN. /REPELLENT FORMULATION CONTAINING SODIUM STEARATE/

ITS WIDESPREAD USE CONFIRMS ITS LACK OF HAZARD & IRRITANT PROPERTIES IN MAN.

... WHEN RABBITS WERE INUNCTED DAILY FOR 90 DAYS, 2 ML/KG (1.88 G/KG) CAUSED ABOUT 50% MORTALITY, & SOMEWHAT GREATER MORTALITY RESULTED @ ... 4 ML/KG (3.76 G/KG). CONTINUED CONTACT CAUSED...IRRITATION TO SKIN ... & ANIMALS THAT DIED EXHIBITED MODERATE LIVER & KIDNEY INJURY. LEUKOCYTOSIS WAS OBSERVED IN ONLY 1 ANIMAL TREATED AT THE 4 ML/KG ... LEVEL.

... RATS WERE FED UP TO 2 YR ON DIETS CONTAINING 2.0, 4.0, & 8.0% OF 2-ETHYL-1,3-HEXANEDIOL. GROWTH WAS DEPRESSED @ ALL LEVELS. AT 8% LEVEL, ALL ANIMALS WERE DEAD WITHIN 18 WK ... DUE TO INANITION. THOSE @ 4.0 & 2.0% LEVELS SURVIVED, & AUTOPSY REVEALED NO ORGANIC INJURY ATTRIBUTABLE TO THE GLYCOL.

... RATS FED FOR 90 DAYS ON DIET THAT PROVIDED DAILY INTAKE OF 0.70 G/KG ... DID NOT GROW AS WELL AS CONTROLS, BUT ... SUFFERED NO ORGANIC INJURY. WHEN ... MAINTAINED ON ... DAILY INTAKE OF 0.48 G/KG, GROWTH WAS NORMAL & NO DETECTABLE ADVERSE EFFECTS ... NOTED.

RATS EXPOSED TO ESSENTIALLY SATURATED VAPORS GENERATED AT ROOM TEMPERATURE FOR 2 HR SURVIVED; THOSE EXPOSED FOR 8 HR DIED. THE RATS EXPOSED TO A MIST GENERATED @ 170 °C FOR 2 HR ALSO SURVIVED WHEREAS THOSE EXPOSED FOR 8 HR DIED. THOSE EXPOSED TO A FOG GENERATED AT 70 °C WITH A NEBULIZER AT A CONCN ESTIMATED TO BE 4800 PPM FOR 8 HR ALL SURVIVED.

For more Non-Human Toxicity Excerpts (Complete) data for 2-ETHYL-1,3-HEXANEDIOL (10 total), please visit the HSDB record page.

LD50 Rat oral 1400 mg/kg

LD50 Mouse oral 1900 mg/kg

P - Antiparasitic products, insecticides and repellents

QP - Antiparasitic products, insecticides and repellents

TOPICAL & IV APPLICATIONS OF (14)C LABELED 2-ETHYL-1,3-HEXANEDIOL WERE MADE TO HAIRLESS DOGS. AFTER TOPICAL ADMIN, EXCRETION WAS NEARLY COMPLETE AFTER 4-5 DAYS. RADIOACTIVITY LEVELS IN BLOOD SAMPLES WERE TOO LOW TO BE ACCURATELY MEASURED. WITHIN 48-96 HR AFTER APPLICATION ONLY SMALL AMT OF RADIOACTIVITY WAS RECOVERED FROM SKIN. RATE OF URINARY EXCRETION AFTER IV ADMIN WAS COMPARABLE TO THAT RECORDED IN HUMANS. IT IS SUGGESTED THAT PERMEABILITY OF HAIRLESS DOG'S SKIN MAY BE QUITE SIMILAR TO THAT OF HUMAN SKIN.

AN IN VITRO APPARATUS WAS USED TO STUDY SKIN EVAPORATION & PENETRATION OF MOSQUITO REPELLENTS. IN VITRO REPELLENT DURATION, CALCULATED FROM REPELLENT EVAPORATION RATES, WAS COMPARED TO IN VIVO DURATION AT THE SAME DOSE (0.3 MG/SQ CM) TO ASSESS VALIDITY OF THE MODEL. IN VITRO DURATIONS FOR 2-ETHYL-1,3-HEXANEDIOL CORRELATED WITH IN VIVO DURATIONS, ALTHOUGH IN VITRO DURATION WAS LONGER THAN IN VIVO DURATION.

PERCENTAGE PENETRATION OF 2-ETHYL-1,3-HEXANEDIOL WAS DETERMINED ON HAIRLESS DOGS AT 4 UG/SQ CM. MEAN PERCENTAGE PENETRATION INCREASED SLIGHTLY WITH INCREASED DOSE OF 2-ETHYL-1,3-HEXANEDIOL, BUT NONE OF THESE CHANGES DIFFERED SIGNIFICANTLY AT THE 95% CONFIDENCE LEVEL.

CIR ingredient: Ethyl Hexanediol

Used as a solvent for resins; as a plasticizer; as a chemical intermediate in the production of polyurethane resins; as an insect repellent; in cosmetics; as a vehicle and solvent in printing inks; in medicines; as a chelating agent for boric acid; [HSDB]

Except for cosmetics, voluntarily removed from US and Canadian markets in 1991 after high-dose animal experiment showed poor lung expansion in offspring; [REPROTOX]

SOLVENT FOR RESINS & INKS; PLASTICIZER; CHEM INTERMEDIATE IN PRODN OF POLYURETHANE RESINS

INSECT REPELLENT, COSMETICS; VEHICLE AND SOLVENT IN PRINTING INKS, MEDICINE, CHELATING AGENT FOR BORIC ACID

PREPD BY CATALYTIC TRIMOLECULAR CONDENSATION OF BUTYRALDEHYDE WITH MAGNESIUM ALUMINUM ETHOXIDE YIELDING THE MONOBUTYRATE OF 2-ETHYL-1,3-HEXANEDIOL, FOLLOWED BY HYDROLYSIS OF THE ESTER.

... PRODUCED COMMERCIALLY BY HYDROGENATION OF BUTYRALDOL (2-ETHYL-3-HYDROXYCAPROALDEHYDE).

WIDELY USED IN MIXTURE (2 PARTS) WITH DIMETHYL PHTHALATE (6 PARTS) & INDALONE (2 PARTS).

GRADES: USP (AS ETHOHEXADIOL); INDUSTRIAL

Mining (except Oil and Gas) and support activities

1,3-Hexanediol, 2-ethyl-: ACTIVE

FORMULATED PRODUCT DISCONTINUED BY UNION CARBIDE AGRICULTURAL PRODUCTS CO, INC.

... EXTENSIVE MILITARY USE HAS INDICATED ITS SAFETY & LACK OF IRRITANT PROPERTIES.

A COMPOSITION WAS PREPARED CONTAINING P-TOLUENESULFONAMIDE 75%, 2-ETHYL-1,3-HEXANEDIOL 20%, & PARAPLEX G25 5%.