17-alpha-(1-Methallyl)-19-nortestosterone 17-beta-Hydroxy-17-alpha-(1-methylallyl)estr-4-en-3-one 4-08-00-01131 (Beilstein Handbook Reference) 7359-80-0 BRN 3157552 ESTR-4-EN-3-ONE, 17-beta-HYDROXY-17-alpha-(1-METHYLALLYL)- SC-8117