16a,17a-Epoxyprogesterone CAS: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-pregnen-3,20-dione;17-epoxy-20-dion(16-alpha)-pregn-4-ene-16;W-oxide Molecular formula:C21H28O3 Molecular weight:328.45 Purity:99% Appearance:White powder EINECS:214-147-5