- Source: Poriferastane
Poriferastane or 24S-ethylcholestane is a tetracyclic triterpene and the parent structure of a series of steroids, such as poriferastanol.
See also
Stigmastane (24R-ethylcholestane)
Campestane (24R-methylcholestane)
Ergostane (24S-methylcholestane)