English Safety Data Sheet Database 中文版 MSDS

Ethyl hexanoate

CAS No. 123-66-0 | PubChem CID 31265
Section 1. Identification
Chemical NameEthyl hexanoate CAS No.123-66-0
Synonymsethylhexanoate; ethylcaproate Chinese Name己酸乙酯
Molecular FormulaC8H16O2 Molecular Weight144.24
UN No.3272 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word WARNING
Pictograms GHS02 · Flammable GHS09 · Environmental Hazard
Hazard Statements H226H401H411
Precautionary Statements P210P233P240P241P242P243P280P303+P361+P353P370+P378P403+P235P501P273P391

Section 2. Hazards Identification

H226 (> 99.9%): Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1742 reports by companies from 7 notifications to the ECHA C&L Inventory.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H226: Flammable liquid and vapor [Warning Flammable liquids]

H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]

H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P210, P233, P240, P241, P242, P243, P273, P280, P303+P361+P353, P370+P378, P391, P403+P235, and P501 (click each P-code to see the statement)

Section 9. Physical and Chemical Properties

CBI; Liquid

Colorless to yellowish liquid with a pleasant odor; [Merck Index] Colorless liquid; [Alfa Aesar MSDS]

Colourless liquid with a wine-like odour

166.00 to 168.00 °C. @ 760.00 mm Hg

-67.5 °C

0.629 mg/mL at 25 °C

Soluble in most fixed oils and in propylene glycol, insoluble in water and glycerol

1ml in 2ml 70% ethanol (in ethanol)

0.867-0.871

1.56 [mmHg]

1.406-1.409

Boiling point

Dielectric constant

Excess enthalpy

Heat of solution

Heat of sublimation

Mixing enthalpy

Optical coefficient

Refractive index

Surface tension

Thermal expansion coefficient

Vapor pressure

Viscosity

Flammable agents - 2nd degree

EU Flavoring substances

FLAVORING AGENT OR ADJUVANT -> FDA Substance added to food

Fragrance Ingredient (Ethyl hexanoate) -> IFRA transparency List

Fatty Acyls [FA] -> Fatty esters [FA07] -> Short fatty esters [FA0710]

Bactericides, Fungicides

Active substance -> EU Pesticides database: Not approved

Solvents -> Esters (<C12)

Section 11. Toxicological Information

Neurotoxin - Acute solvent syndrome

Source: PubChem CID 31265 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 09:08:50.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.