Sterols similar to cholesterol which occur in plants and vary only in carbon side chains and/or presence or absence of a double bond.
| Member | Definition | Role |
|---|
| 22,23-dihydroergosterol | A phytosterol consiting of ergostane having double bonds at the 5,6- and 7,8-positions as well as a 3beta-hydroxy group. | ergosta-5,7-dien-3beta-ol |
| brassicasterol | An 3beta-sterol that is (22E)-ergosta-5,22-diene substituted by a hydroxy group at position 3beta. It is a phytosterol found in marine algae, fish, and rapeseed oil. | brassicasterol |
| campesterol | | campesterol |
| cycloartenol | | cycloartenol |
| cycloleucalenol | | cycloeucalenol |
| dehydroergosterol | A phytosterol consiting of ergostane having double bonds at the 5,6-, 7,8- 9,11- and 22,23-positions as well as a 3beta-hydroxy group. | dehydroergosterol |
| ergosterol | A phytosterol consisting of ergostane having double bonds at the 5,6-, 7,8- and 22,23-positions as well as a 3beta-hydroxy group. | ergosterol |
| ergosterol-5,8-peroxide | An ergostanoid that is ergosta-6,22-dien-3-ol with a peroxy group between positions 5 and 8 (the 3beta,5alpha,8alpha,22E stereoisomer). Isolated from Ganoderma lucidum and Cordyceps sinensis, it exhibits antimycobacterial, trypanocidal and antineoplastic activities. | ergosterol peroxide |
| gamma-sitosterol | A member of the class of phytosterols that is poriferast-5-ene carrying a beta-hydroxy substituent at position 3. | clionasterol |
| sitosterol, (3beta)-isomer | A member of the class of phytosterols that is stigmast-5-ene substituted by a beta-hydroxy group at position 3. | sitosterol |
| stigmastanol | A 3-hydroxy steroid that is 5alpha-stigmastane which is substituted at the 3beta position by a hydroxy group. | stigmastanol |
| stigmasterol | A 3beta-sterol that consists of 3beta-hydroxystigmastane having double bonds at the 5,6- and 22,23-positions. | stigmasterol |
| stigmasterol 3-o-beta-d-glucopyranoside | A steroid saponin that is (3beta,22E)-stigmasta-5,22-dien-3-ol attached to a beta-D-glucopyranosyl residue at position 3 via a glycosidic linkage. It is isolated from Symplocos lancifolia. | stigmasterol 3-O-beta-D-glucoside |