13-Ethyl-17B-Hydroxy -18,19-Dinorpregnane-5 (10)-En-20-Alkyn-3-one 17Alpha-Ethynyl-17B-Hydroxy -18-Methyl Estro-5 (10)-En -3-one, 19914-67-1

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June 4, 2026

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Chinese name: 13-ethyl-17 B- hydroxy-18,19-di norpregnane-5 (10)-ene -20-alkyn-3-one 17alpha-ethynyl-17 B- hydroxy-18-methylestrane-5 (10)-en-3-one
. English name: 13-Ethyl-17-hydroxy-18, 19-dinorpregnn-5 (10)-en-20-yn-3 -
one Chinese alias: 13-ethyl-17B-hydroxy -18,19-di-norgestrol -5(10)-ene -20-alkyne -3-one 17a-ethynyl-17b-hydroxy-18-methylestere-5 (10)-ene -3-one; 17a-ethynyl -18-methylestrol -5(10)-ene-17b-ol -3-one; 13-Ethyl-17-hydroxy-18,19-dinor-17-alpha-pregn-5(10)-en-20-yn-3 -
one English alias: impurity Levonorgestrel B;(8R,9S,13S,14S,17R)-including, 2,4,6,7, 12,9, 15,16-dodecahydrocyclopenta[a]phenanthren-3-one number:

19914-67-1 Chemical formula:
C21H28O2 molecular weight:
312.45