| Synonyms: |
(3alpha,4alpha,5alpha,12alpha)-3,12-dihydroxy-4-methyl-7,11-dioxoergosta-8,24(28)-dien-26-oic acid,
3alpha,12alpha-dihydroxy-4alpha-methylergosta-8,24(28)-dien-7,11-dione-26-oic acid
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| Definition: |
A steroid acid that is ergosta-8,24(28)-dien-26-oic acid substituted by hydroxy groups at positions 3 and 12, a methyl group at position 4 and oxo groups at positions 7 and 11 (the 3alpha,4alpha,5alpha,12alpha stereoisomer). Isolated from Antrodia cinnamomea and Antrodia camphorata, it exhibits antineoplastic activity. |