Chemical Name: Estra-5(10),9(11)-diene-3,17-dione 3-Ethylene Ketal; (8S,13S,14S)-13-methyl-1,4,6,7,8,12,13,14,15,16-decahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolan]-17(2H)-one
Smiles: C[C@]1([C@](CC2)([H])[C@]3([H])CCC4=C(CCC5(OCCO5)C4)C3=CC1)C2=O