(3S,9S,10R,13R,14R,17R)-10,13-dimethyl-17-((R,E)-6-methyl-5-methylenehept-3-en-2-yl)-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol;(E)-Ergosta-5,7,22,24(28)-tetraen-3?-ol; Ergosta-5,7,22,24(28)-tetraene-3?-ol; Ergosta-5,7,trans-22,24(28)-tetraen-3?-ol;24(28)-Dehydroergosterol