Dydrogesterone Impurity 1

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

Smile: C[C@@]1([C@@H](C2(OCCO2)C)CC3)[C@]3([H])C4=CC=C5[C@@](C)(CCC6(OCCO6)C5)[C@]4([H])CC1