Agent Name

Isobutyl formate

CAS Number

542-55-2

Formula

C5-H10-O2

Major Category

Solvents

Synonyms

2-Methyl-1-propyl formate; 2-Methylpropyl formate; Formic acid, 2-methylpropyl ester; Formic acid, isobutyl ester; Iso-butyl formate; Isobutyl formate (natural); Isobutyl methanoate; Isobutyl methanote; Isobutylester kyseliny mravenci [Czech]; Tetryl formate; [ChemIDplus] UN2393

Category

Esters (<C12)

Description

Colorless liquid; [CAMEO] Clear light yellow liquid; [Acros Organics MSDS]

Sources/Uses

Used as a solvent and to make perfumes; [CAMEO] Used as flavoring agent or adjuvant; [FDA] "Isobutyl formate (2-methylpropyl methanoate) is an organic ester with the chemical formula C5H10O2. It is formed by diluting isobutanol with formic acid; sulfuric acid can serve as a catalyst. It is used as a flavor and fragrance ingredient because of its odor which is sweet, ethereal, and slightly fruity." [Wikipedia]

Comments

High vapor concentrations may cause irritation and narcotic effects; [CAMEO] Safe when used as a flavoring agent in food; [JECFA] May cause irritation; [Acros Organics MSDS]

Exposure Assessment
Vapor Pressure

40.1 mm Hg

Flammability (NFPA)

3: May ignite at ambient temperature

Adverse Effects
Neurotoxin

CNS Solvent Syndrome

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: