Phytosphingosine is a sphingoid base, a fundamental building block of more complex

sphingolipid Sphingolipids are a class of lipids containing a backbone of sphingoid bases, a set of aliphatic amino alcohols that includes sphingosine. They were discovered in brain extracts in the 1870s and were named after the mythological sphinx because o ...

s. It is abundant in plants and fungi and present in animals.

References

Lipids Amines Triols {{organic-compound-stub