A sterol in which the hydroxy group at position 3 has beta- configuration.
| Member | Definition | Role |
|---|
| 20,22-dihydroxycholesterol | An oxysterol that is cholesterol substituted by hydroxy groups at positions 20 and 22 (the 20R,22R-stereoisomer). | (20R,22R)-20,22-dihydroxycholesterol |
| 22-ketocholesterol | A 3beta-sterol that is cholesterol carrying an oxo group at position 22. | 22-ketocholesterol |
| 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 |
| 24-methylenecholesterol | A 3beta-sterol having the structure of cholesterol with a methylene group at C-24. | 24-methylenecholesterol |
| 24,25-dihydrolanosterol | A 3beta-sterol formed from lanosterol by reduction across the C-24-C-25 double bond. | 24,25-dihydrolanosterol |
| 3-hydroxy-5-cholestenoic acid | A steroid acid resulting from the oxidation of one of the terminal methyl groups of cholesterol to the corresponding aldehyde. | 3beta-hydroxycholest-5-en-26-oic acid |
| 4,4-dimethyl-5-alpha-cholesta-(8,24)-dien-3-beta-ol | A 3beta-sterol formed formally by loss of a methyl group from the 14-position of lanosterol. | 14-demethyllanosterol |
| 4,4-dimethylcholesta-8,14-dien-3-ol | A cholestanoid that is 5alpha-cholesta-8,14-dien-3beta-ol bearing two additional methyl substituents at position 4. | 4,4-dimethyl-8,14-cholestadien-3beta-ol |
| 4,4-dimethylcholesta-8,14,24-trienol | | 4,4-dimethyl-5alpha-cholesta-8,14,24-trien-3beta-ol |
| 7-aminocholesterol | A 3beta-sterol that is cholesterol substituted at position 7 by an amino group. | 7-aminocholesterol |
| 7-dehydrocholesterol | | cholesta-5,7-dien-3beta-ol |
| 7-ketocholesterol | A cholestanoid that consists of cholesterol bearing an oxo substituent at position 7. | 7-ketocholesterol |
| abiraterone | A 3beta-sterol that is androsta-5,16-dien-3beta-ol substituted at position 17 by a 3-pyridyl group. Administered as the O-acetate, it is used for treatment of metastatic castrate-resistant prostate cancer. | abiraterone |
| androstane-3,6,17-triol | A 3beta sterol that is 5alpha-androstane which is substituted by beta-hydroxy groups at positions 3 and 17 and by an alpha-hydroxy group at position 6. | 5alpha-androstane-3beta,6alpha,17beta-triol |
| androstane-3,7,17-triol | A 3beta sterol that is 5alpha-androstane which is substituted by beta-hydroxy groups at positions 3 and 17 and by an alpha-hydroxy group at position 7. | 5alpha-androstane-3beta,7alpha,17beta-triol |
| 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 |
| campestanol | | campestanol |
| 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 |
| desmosterol | A cholestanoid that is cholesta-5,24-diene substituted by a beta-hydroxy group at position 3. It is an intermediate metabolite obtained during the synthesis of cholesterol. | desmosterol |
| digoxigenin | A hydroxy steroid that consists of 5beta-cardanolide having a double bond at the 20(22)-position as well as hydroxy groups at the 3beta-, 12beta- and 14beta-positions. It has been isolated from the plant species of the genus Digitalis. | digoxigenin |
| diosgenin | A sapogenin that is spirostan which is substituted by a hydroxy group at the 3beta position, contains a double bond at the 5-6 position, and has R- configuration at position 25. A natural product found in Dioscorea (wild yam) species, it is used as the starting point for the commercial synthesis of a number of steroids, including cortisone, pregnenolone and progesterone. | diosgenin |
| ebericol | A tetracyclic triterpenoid that is 24,25-dihydrolanosterol carrying an additional methylene substituent at position 24. A natural product found in Taiwanofungus camphoratus. | eburicol |
| ecdysone | A 6-oxo steroid that is 5beta-cholest-7-en-6-one substituted by hydroxy groups at positions 2, 3, 14, 22 and 25 respectively (the 2beta, 3beta, 22R stereoisomer). It is a steroid prohormone of the major insect moulting hormone 20-hydroxyecdysone. | ecdysone |
| ecdysterone | An ecdysteroid that is ecdysone substituted by a hydroxy group at position 20. | 20-hydroxyecdysone |
| ergosta-7,22-dien-3-ol, (3beta,5alpha,6alpha,22e)-isomer | A 3beta-sterol consisting of an ergostane skeleton with double bonds at 7- and 22-positions. | 5alpha-ergosta-7,22-dien-3beta-ol |
| 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 |
| fecosterol | A 3beta-sterol having a 5alpha-ergostane skeleton with a methylidene group at C-24 and double bonds at the C-8 and C-24(28) positions. | fecosterol |
| gamma-sitosterol | A member of the class of phytosterols that is poriferast-5-ene carrying a beta-hydroxy substituent at position 3. | clionasterol |
| ganodermadiol | A tetracyclic triterpenoid that is lanosta-7,9(11),24-triene which is substituted by hydroxy groups at positions 3 and 27. It has been isolated from several Ganoderma species. | ganoderol B |
| lanosten-3-ol-32-al | A tetracyclic triterpenoid that is lanost-8-ene carrying hydroxy and oxo substituents at positions 3beta and 30 respectively. | 3beta-hydroxylanost-8-en-32-al |
| lanosterol | A tetracyclic triterpenoid that is lanosta-8,24-diene substituted by a beta-hydroxy group at the 3beta position. It is the compound from which all steroids are derived. | lanosterol |
| lathosterol | A cholestanoid that is (5alpha)-cholest-7-ene substituted by a beta-hydroxy group at position 3. | 5alpha-cholest-7-en-3beta-ol |
| obtusifoliol | | obtusifoliol |
| parkeol | A tetracyclic triterpenoid comprised of a lanostane skeleton which is 3beta-hydroxylated and has double bonds at the 9(11)- and 24-positions. | parkeol |
| 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 |
| stigmasterol | A 3beta-sterol that consists of 3beta-hydroxystigmastane having double bonds at the 5,6- and 22,23-positions. | stigmasterol |
| zymostenol | A cholestanoid that is 5alpha-cholestane substituted by a beta-hydroxy group at position 3. | 5alpha-cholest-8-en-3beta-ol |
| zymosterol | | zymosterol |