Gestodene EP Impurity J

Chemical Name: 13-ethylspiro(18,19-dinor-17α-pregna-5,15-dien-20-yne-3,2′-[1,3]dioxolan)-17-ol and 13-ethylspiro(18,19-dinor-17α-pregna-5(10),15-dien-20-yne-3,2′-[1,3]dioxolan)-17-ol (as per EP)

Synonym: 8-chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine hydrochloride