| Description | Ergosterol, also known as provitamin D2, belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. Thus, ergosterol is considered to be a sterol lipid molecule. Ergosterol is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. Ergosterol is the biological precursor to vitamin D2. It is turned into viosterol by ultraviolet light, and is then converted into ergocalciferol, which is a form of vitamin D. Ergosterol is a component of fungal cell membranes, serving the same function that cholesterol serves in animal cells. Ergosterol is not found in mammalian cell membranes. |
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| Synonyms | | Value | Source |
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| (22E,24S)-24-Methylcholesta-5,7,22-trien-3beta-ol | ChEBI | | Provitamin D2 | ChEBI | | (22E,24S)-24-Methylcholesta-5,7,22-trien-3b-ol | Generator | | (22E,24S)-24-Methylcholesta-5,7,22-trien-3β-ol | Generator | | Lumisterol | HMDB | | Provitamin D 2 | HMDB | | D2, Pro-vitamin | HMDB | | Pro vitamin D2 | HMDB | | Pro-vitamin D2 | HMDB | | (22E,24R)-Ergosta-5,7,22-trien-3beta-ol | HMDB | | (22E,24R)-Ergosta-5,7,22-trien-3β-ol | HMDB | | (24R)-Ergosta-5,7,22-trien-3beta-ol | HMDB | | (24R)-Ergosta-5,7,22-trien-3β-ol | HMDB | | (3beta,22E)-Ergosta-5,7,22-trien-3-ol | HMDB | | (3Β,22E)-ergosta-5,7,22-trien-3-ol | HMDB | | 24-Methylcholesta-5,7,22-trien-3beta-ol | HMDB | | 24-Methylcholesta-5,7,22-trien-3β-ol | HMDB | | 24R-Methylcholesta-5,7,22E-trien-3beta-ol | HMDB | | 24R-Methylcholesta-5,7,22E-trien-3β-ol | HMDB | | 24alpha-Methyl-22E-dehydrocholesterol | HMDB | | 24Α-methyl-22E-dehydrocholesterol | HMDB | | 3beta-Hydroxyergosta-5,7,22-triene | HMDB | | 3Β-hydroxyergosta-5,7,22-triene | HMDB | | Ergosterin | HMDB | | Provitamin D | HMDB | | Ergosterol | HMDB |
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| InChI Identifier | InChI=1S/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7+/t19-,20+,22-,24+,25-,26-,27-,28+/m0/s1 |
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