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Triacetone amine

Triacetone amine
Systematic name 2,2,6,6-Tetramethylpiperidinone
Other names Triacetone amine
Molecular formula C9H17NO
Molar mass 155.23 g/mol
Appearance Colorless low-melting solid
CAS number [826-36-8]
Density and phase  ? g/cm3
Solubility in water Moderate
Other solvents Most organic solvents
Melting point 43 °C
Boiling point 205 °C
Basicity (pKb)  ?
Viscosity  ? cP at ? °C
Dipole moment  ? D
MSDS External MSDS
Main hazards flammable
NFPA 704
Flash point 164 °F
R/S statement R: 22-36/37/38
S: 26-36/37
RTECS number TO0127900
Supplementary data page
Structure and
n, εr, etc.
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Related compounds Piperidine
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

Triacetone amine is the heterocycle that arises via the condensation of acetone and ammonia according to the following equation:

3 CH3C(O)CH3 + NH3 → OC(CH2C(CH3)2)2NH + 2 H2O

It is used to prepare the hindered amine 2,2,6,6-tetramethylpiperidine, CH2[CH2C(CH3)2]2NH.[1]


  1. ^ Sorgi, K. L. “2,2,6,6-Tetramethylpiperidine” in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. DOI: 10.1002/047084289.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Triacetone_amine". A list of authors is available in Wikipedia.
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