16-beta-Ethyl-17-beta-hydroxyestr-4-en-3-one acetate 17-beta-Acetoxy-16-beta-ethylestr-4-en-3-one 17beta-Acetoxy-16beta-ethylestr-4-en-3-one 33765-80-9 BRN 2166818 ESTR-4-EN-3-ONE, 16-beta-ETHYL-17-beta-HYDROXY-, ACETATE Estr-4-en-3-one, 17-(acetyloxy)-16-ethyl-, (16-beta,17-beta)- (9CI) TSAA-328