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IUPAC name Cyclohexanamine
Other names Aminocyclohexane
CAS number 108-91-8
PubChem 7965
EINECS number 203-629-0
RTECS number GX0700000
Molecular formula C6H13N
Molar mass 99.17 g mol-1
Appearance clear to yellowish liquid
Density 0.8647
Melting point

-17.7 °C, 255 K, 0 °F

Boiling point

134.5 °C, 408 K, 274 °F

Solubility in water Miscible
S-phrases S36 S37 S39
R/S statement R21 R23 R25 R36 R37 R38 R41
Flash point 28.6 °C
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Cyclohexylamine, also called hexahydroaniline, 1-aminocyclohexane, or aminohexahydrobenzene, is an organic chemical, an amine derived from cyclohexane. It is a clear to yellowish liquid with fishy odor, with melting point of −17.7 °C and boiling point 134.5 °C, miscible with water. Like other amines, it is of mildly alkaline nature, compared to strong bases such as NaOH, but it is a stronger base than its aromatic sister compound aniline, which differs only in that its ring is aromatic. It is flammable, with flash point at 28.6 °C. Explosive mixtures with air can be formed above 26 °C. It is toxic by both ingestion and inhalation; the inhalation itself may be fatal. It readily absorbs through skin, which it irritates. It is corrosive. Cyclohexylamine is listed as an extremely hazardous substance as defined by Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act.

Cyclohexylamine is used as an intermediate in synthesis of some herbicides, antioxidants, accelerators for vulcanization, pharmaceuticals (eg. mucolytics, analgesics, and bronchodilators, corrosion inhibitors, some sweeteners (notably cyclamate), etc.


  1. ^ Merck Index, 11th Edition, 2735.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Cyclohexylamine". A list of authors is available in Wikipedia.
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