Product nomen 16a,17a-Epoxyprogesterone CAS Number 1097-51-4 Synonyms 16,17-Epoxypregn-4-ene-3,20-dione;16-alpha,17-epoxy-pregn-4-ene-20-dione;16-alpha,17-epoxypregn-4-ene-3,20-dione;16,17-EPOXYPChemicalbookROGESTERONE;16,17-ALPHA-EPOXYPROGESTERONE;16a,17a-epoxy-4-pregnene-3,20-dione;17-epoxy-20-dion(16-alpha)-pregn-4-ene-16;W-oxide Molecular formula C21H28O3 Molecular weight 328.45 Puritas 99% Appearance White powder EINECS number 214-147-5