- a basic unsaturated amino alcohol, C18H33(OH)2NH2, produced by the hydrolysis of sphingomyelin or gangliosides.
- a long-chain compound occurring in sphingomyelins and cerebrosides, and from which it can be released by hydrolysis. Formula: CH 3 (CH 2) 12 CH:CHCH(OH)CH(NH 2)CH 2 OH
