Isobutyraldehyde
Agent Name
Isobutyraldehyde
CAS Number
78-84-2
Formula
C4-H8-O
Major Category
Other Classes
Synonyms
2-Methyl-1-propanal; 2-Methylpropanal; 2-Methylpropionaldehyde; Isobutaldehyde; Isobutanal; Isobutylaldehyde; Isobutyral; Isobutyraldehyd [Czech]; Isobutyraldehyde (natural); Isobutyric aldehyde; Isobutyryl aldehyde; Isopropyl aldehyde; Isopropyl formaldehyde; Isopropylaldehyde; Isopropylformaldehyde; Methyl propanal; Methylpropanal; Propanal, 2-methyl-; Propionaldehyde, 2-methyl-; Valine aldehyde; alpha-Methylpropionaldehyde; [ChemIDplus] UN2045
Category
Aldehydes
Description
Clear liquid with pungent odor; [Hawley] Colorless liquid; [MSDSonline]
Sources/Uses
Used in organic synthesis (pantothenic acid, valine, leucine, cellulose esters, perfumes, flavors, plasticizers, resins, and gasoline additives); [Merck Index] Used as a chemical intermediate; [Hawley] An FDA-approved flavoring agent and it occurs naturally in foods; [AIHA]
Comments
A corrosive substance that can cause pulmonary edema; Can cause skin burns; Can cause severe burns to eyes; [ICSC] Inhalation of high concentrations can cause CNS depression; [HSDB] An irritant; [MSDSonline] No irritation in 15 volunteers exposed to 210 ppm, but two became nauseated; [AIHA]
Biomedical References
Exposure Assessment
Vapor Pressure
173 mm Hg
Odor Threshold Low
0.14 ppm
Odor Threshold High
0.3 ppm
Lethal Concentration
LCLo (rat) = 8,000 ppm/4h
Explanatory Notes
Flash point = -25 deg C; [ICSC] Odor threshold (recognition) from CHEMINFO; VP from ChemIDplus;
NFPA
may ignite at ambient temp
WEEL
25 ppm
Adverse Effects
Toxic Pneumonitis
Yes
Dermatotoxin
Skin burns
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.