Ethyl 3-oxopregna-4,6-diene-21,17alpha-carbolactone-21-carboxylate, Ethyl 3-oxopregna-4,6-diene-21,17a-carbolactone-21-carboxylate, Ethyl 10,13-dimethyl-3,5'-dioxo-1,2,3,8,9,10,11,12,13,14,15,16-dodecahydrospiro[cyclopenta[a]phenanthrene-17,2'-oxolane]-4'-carboxylate
CAS :
53866-20-9
EC :
258-829-0
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