Limonene

Agent Name
Limonene
Alternative Name
Dipentene
CAS Number
138-86-3
Formula
C10-H16
Major Category
Biological Agents
Limonene formula graphical representation
Synonyms
(+-)-Dipentene; (+-)-Linonene; (+-)-alpha-Limonene; 1,8(9)-p-Menthadiene; 1,8-p-Menthadiene; 1-Methyl-4-(1-methylethenyl)cyclohexene; 1-Methyl-4-isopropenyl-1-cyclohexene; 1-Methyl-p-isopropenyl-1-cyclohexene; 4-Isopropenyl-1-methyl-1-cyclohexene; Acintene DP; Acintene DP dipentene; Cajeputen; Cajeputene; Cinen; Cinene; Cyclohexene, 1-methyl-4-(1-methylethenyl)-; DL-4-Isopropenyl-1-methylcyclohexene; Di-p-mentha-1,8-diene; Dipanol; Dipenten; Dipentene; Dipentene 200; Eulimen; Flavor orange; Goldflush II; Inactive limonene; Kautschin; Limonen; Mentha-1,8-diene (DL); Nesol; Orange flavor; PC 560; Unitene; alpha-Limonene; d,l-Limonene; delta-1,8-Terpodiene; dl-Limonene; p-Mentha-1,8-diene, (+-)-; p-Mentha-1,8-diene; [ChemIDplus] UN2052
Category
Terpenes
Description
Colorless liquid with a citrus-like odor; [ChemIDplus]
Sources/Uses
Used in flavorings, fragrances, cosmetics and as a solvent and wetting agent; Also used to make resins, insecticides, insect repellants, and animal repellants; [HSDB] Used as a dissolving agent for gallstones and gutta-percha; [ChemIDplus] Used in floor waxes and furniture polishes; [CAMEO] Occurs naturally in essential oils of many plants and is a minor constituent of turpentine; [CHEMINFO]
Comments
Skin and eye irritant; A skin sensitizer; [HSDB] Danger of skin sensitization; [MAK] An irritant; May cause skin sensitization; [MSDSonline] The racemic mixture of d-limonene and l-limonene is called dipentene (138-86-3).[Kanerva, p. 1789] See "l-Limonene" and "d-Limonene."
Reference Link #1
Biomedical References

Exposure Assessment

Vapor Pressure
1.55 mm Hg
Lethal Concentration
LC50 (mice) = 67,500 mg/m3
Explanatory Notes
Flash point = 45 deg C; [HSDB] VP from ChemIDplus;
NFPA
high ambient temp required
WEEL
30 ppm

Adverse Effects

Skin Sensitizer
Yes
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: