Methyldienedione Synonyms: Estra-4,9-Diene-3,17-Dione CAS: 5173-46-6 MF: C18H22O2 MW: 270.37 Test: 99% Caracter: Pulbere cristalină albă. Packing:Foil bag or as requirments Categories: Intermediari farmaceutici; Aminoacizi; Intermediari & Produse chimice fine; Metaboliți & Impurităţi; Produse farmaceutice; Steroids Usage: A potential metabolitie of STS 557 (Dienogest). A steroid with antiglucocorticoid activity.