Cyclopentanone
Agent Name
Cyclopentanone
CAS Number
120-92-3
Formula
C5-H8-O
Major Category
Solvents
Synonyms
Adipic ketone; Adipin keton; Dumasin; Ketocyclopentane; Ketopentamethylene; [ChemIDplus] UN2245
Category
Ketones (<C12)
Description
Water-white liquid with distinctive odor like peppermint; [Hawley] Colorless clear liquid; Polymerizes easily in presence of acids; [ICSC]
Sources/Uses
Used as intermediate for pharmaceuticals, biologicals, insecticides, and rubber chemicals; [Hawley]
Comments
A skin and eye irritant; A possible respiratory tract irritant; Can be absorbed through skin; [ICSC] Inhalation of high concentrations can cause CNS depression; [HSDB] May cause irritation or burns to skin and eyes; [CAMEO] A skin and eye irritant; [eChemPortal: ESIS] Oral LD50 (mouse) = 1820 mg/kg; Effects in high-dose animal studies include somnolence, coma, and other changes to liver; [RTECS] Safe when used as a flavoring agent; [JECFA]
Biomedical References
Exposure Assessment
Vapor Pressure
11.4 mm Hg
Lethal Concentration
LC50 (rat) = 19,500 mg/m3
Explanatory Notes
VP from ChemIDplus;
NFPA
may ignite at ambient temp
Adverse Effects
Neurotoxin
Acute solvent syndrome
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent: