1.The manfacture of (3b,5b,15a,16a)-15,16-Dihydro-3,5-dihydroxy- ... ,16]androsta-6,15-dien-17-one 2 .CAS #: 82543-1 Product Information CAS Number82543-15-5Name3'H-Cycloprop[15,16]androsta ... 'H-cycloprop[15,16]androsta-6,15-dien-17-one (CAS #: 82543-15-5)