Methyldienedione Synonyms: Estra-4,9-Diene-3,17-Dione CAS: 5173-46-6 MF: C18H22O2 MW: 270.37 Esej: 99% Znak: Bel kristalinični prah. Packing:Foil bag or as requirments Categories: Farmacevtski intermediati; Amino kisline; Intermediati & Fine kemikalije; Metaboliti & Nečistoče; Farmacevtski izdelki; Steroids Usage: A potential metabolitie of STS 557 (Dienogest). A steroid with antiglucocorticoid activity.