Agent Name |
Caprolactam |
CAS Number |
105-60-2 |
Formula |
C6-H11-N-O |
Major Category |
Plastics & Rubber |
Synonyms |
1,6-Hexalactam; 1,6-Hexolactam; 1-Aza-2-cycloheptanone; 2-Azacycloheptanone; 2-Ketohexamethylenimine; 2-Oxohexamethyleneimine; 2-Oxohexamethylenimine; 2-Perhydroazepinone; 2H-Azepin-2-one, hexahydro-; 2H-Azepin-7-one, hexahydro-; 6-Aminocaproic acid lactam; 6-Aminohexanoic acid cyclic lactam; 6-Caprolactam; 6-Hexanelactam; A1030; Aminocaproic lactam; Caprolactam; Caprolactam monomer; Caprolattame [French]; Capron PK4; Cyclohexanone iso-oxime; Epsylon kaprolaktam [Polish]; Extrom 6N; Hexahydro-2-azepinone; Hexahydro-2H-azepin-2-one; Hexamethylenimine, 2-oxo-; Hexanoic acid, 6-amino-, cyclic lactam; Hexanoic acid, 6-amino-, lactam; Hexanolactam; Hexanone isoxime; Hexanonisoxim [German]; Kapromine; Stilon; e-Kaprolaktam [Czech]; epsilon-Caprolactam; [ChemIDplus] UN8027 |
Category |
Other Monomers |
Description |
White, crystalline solid or flakes with an unpleasant odor; Note: Significant vapor concentrations would be expected only at elevated temperatures; [NIOSH] |
Sources/Uses |
Used as "a monomer for synthetic fibers, plastics, coatings, plasticizers, and paint vehicles and as a cross-linking agent for polyurethanes." [ACGIH] |
Comments |
May cause skin sensitization; A skin, eye, and respiratory tract irritant; Inhalation of high concentrations may cause CNS effects; [ICSC] Liver and kidney changes occur in subchronic animal studies using intraperitoneal doses. [ACGIH] |
Exposure Assessment |
Skin Designation (ACGIH) |
No |
TLV (ACGIH) |
5 mg/m3, inhalable fraction and vapor |
MAK |
5 mg/m3, inhalable fraction(dust and vapor) |
Vapor Pressure |
0.0019 mm Hg |
Lethal Concentration |
LC50 (rats) = 300 mg/m3/2h |
Explanatory Notes |
Flash point = 110 deg C; |
Reference Link |
International Chemical Safety Cards (WHO/IPCS/ILO) |
Adverse Effects |
Skin Sensitizer |
Yes |
Neurotoxin |
Other CNS Neurotoxin |
Hepatotoxin |
Hepatotoxin, Secondary |
Links to Other NLM Databases |
Health Studies |
Human Health Effects from Hazardous Substances Data Bank: CAPROLACTAM
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