Alternative Name
Hexahydropyridine
Major Category
Nitrogen Compounds
Synonyms
Hexahydropyridine; Azacyclohexane; Cyclopentimine; Cypentil; Hexazane; Pentamethyleneimine; Pentamethylenimine; Perhydropyridine; Piperidin [German]; Pyridine, hexahydro-; [ChemIDplus] UN2401
Description
Colorless liquid with an amine odor; [HSDB]
Sources/Uses
Used as a chemical intermediate to produce drugs, wetting agents, and disinfectants; Also used as a rubber accelerator, a curing agent for epoxy resins, a flavoring agent, and an additive to oils and fuels; [HSDB]
Comments
Corrosive to skin; [Quick CPC] High inhalation exposure can cause pulmonary edema; [ICSC] Signs of toxicity in acute animal studies included respiratory distress, ataxia, weakness, paralysis, and convulsions; For humans, the irritation threshold is 26 ppm; workers can tolerate levels of 2-5 ppm for only a short period because of the odor; [AIHA] Oral doses of 30-60 mg/kg may cause weakness, vomiting, labored respiration, muscular paralysis, and asphyxia; [NTP] Safe when used as a flavoring agent in food; [JECFA] A skin sensitizer in guinea pigs; [EPA ChAMP] Causes impaired liver function tests in repeated dose inhalation studies of rats; [RTECS]
Vapor Pressure
32.1 mm Hg
Lethal Concentration
LC50 (mice) = 6,000 mg/m3/2hr
Explanatory Notes
Odor threshold <2 ppm by volume; [AIHA] VP from HSDB;
NFPA
may ignite at ambient temp
Neurotoxin
Other CNS neurotoxin
Hepatotoxin
Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion
Processes
Industrial Processes with risk of exposure: