3,20-bis(ethylenedioxy)pregna-5,7-diene

Iupac Name：(9S,10R,13S,14R,17S)-10,13-dimethyl-17-(2-methyl-1,3-dioxolan-2-yl)spiro[1,2,4,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,2'-1,3-dioxolane]

CAS No.: 19592-55-3

Molecular Weight：400.55

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