Chemical Name: (8R,9S,13S,14S,17S)-3,17-dihydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-6-one
Synonym: Fexofenadine M methyl Ester ; methyl 2-(3-(1-hydroxy-4-(4-(hydroxydiphenylmethyl)piperidin-1-yl)butyl)phenyl)-2-methylpropanoate
Smile: C[C@@]12[C@](CC[C@@H]2O)([H])[C@@](C3)([H])[C@@](CC1)([H])C(C=CC(O)=C4)=C4C3=O