o-Cymene
Agent Name
o-Cymene
CAS Number
527-84-4
Formula
C10-H14
Major Category
Solvents
Synonyms
1-Isopropyl-2-methylbenzene; 1-Methyl-2-(1-methylethyl)benzene; 1-Methyl-2-isopropylbenzene; 1-Methyl-2-isopropylbenzol; 2-Isopropyltoluene; Benzene, 1-methyl-2-(1-methylethyl)-; CYMENE, ORTHO; o-Cymol; o-Isopropyltoluene; [ChemIDplus] UN2046
Category
Aromatic Solvents
Description
Colorless liquid; [Hawley] Clear nearly colorless liquid; [MSDSonline]
Sources/Uses
A volatile constituent of the essential oil of olibanum; Used as a solvent, metal polish additive, and intermediate for resin manufacturing; Meta, ortho, and para isomers are usually synthesized by alkylation of toluene; [HSDB]
Comments
Emergency treatment: "Toluene"; [HSDB] An irritant; [MSDSonline] See "Toluene."
Biomedical References
Exposure Assessment
Vapor Pressure
1.5 mm Hg
Lethal Concentration
LC50 (mice) = 10,300 mg/m3
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Cymenes." VP from ChemIDplus;
Adverse Effects
Neurotoxin
Acute solvent syndrome
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent:
Processes
Industrial Processes with risk of exposure: