118447-77-1 1331-00-6 516-85-8 Dehydroergosterol Ergosta-5,7,9(11),22-tetraen-3-ol, (3beta,22E)- Ergosta-5,7,9(11),22-tetraen-3beta-ol delta(5,7,9(11)22)-Ergostatetraen-3-ol