Agent Name

2-Ethylbutyric acid

CAS Number

88-09-5

Formula

C6-H12-O2

Major Category

Other Classes

Synonyms

2-Ethyl butanoic acid; 2-Ethylbutanoic acid; 3-Pentanecarboxylic acid; Acetic acid, diethyl-; alpha-Ethylbutyric acid; Butanoic acid, 2-ethyl-; Butyric acid, 2-ethyl-; Diethylacetic acid; Kyselina diethyloctova [Czech]; [ChemIDplus]

Category

Organic Acids

Description

Colorless liquid; [Merck Index] Colorless liquid with a rancid odor; [Acros Organics MSDS]

Sources/Uses

Used as a flavoring agent; [FDA] Used mainly as an intermediate; [OECD SIDS]

Comments

Safe when used as a flavoring agent in food; [JECFA] A reproductive/developmental oral study of rats produced increased kidney weights (without corresponding histopathology), no adverse effects on sexual organs or reproductive parameters, and decreased birth index with NOAEL's of 10 mg/kg/day in males, 50 mg/kg/day in females, 250 mg/kg/day for reproductive toxicity, and 50 mg/kg/day for developmental toxicity; [OECD SIDS] Dermal LD50 (rabbit) = 520 uL/kg; [RTECS] A mild skin, mucous membrane, and severe eye irritant; Harmful by skin absorption; [Acros Organics MSDS]

Exposure Assessment
Vapor Pressure

0.18 mm Hg

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Other Information

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