Chemical Name: (S)-4,11-diethyl-4-hydroxy-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-9-yl 2'-ethoxy-[1,4'-bipiperidine]-1'-carboxylate
Synonym: Norethindrone Acetate 3-Isopropoxy Impurity
Smile: CCOC(C1)N(C(OC2=CC=C(N=C(C(N3C4)=CC([C@](CC)(O)C(OC5)=O)=C5C3=O)C4=C6CC)C6=C2)=O)CCC1N7CCCCC7