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19-Norpregn-4-en-20-yn-17-ol,(17a)- cas no:52-76-6

Synonyms: 19-Nor-17a-pregn-4-en-20-yn-17-ol(6CI,8CI);17a-Ethynyl-17b-hydroxyestr-4-ene;3-Desoxy-17a-ethinyl-19-nortestosterone;Exlutena;Exluton;Fysionorm;NSC 73879;Orgametrol;Physiostat;D4-17a-Ethinylestren-17b-ol;

Identification
Name19-Norpregn-4-en-20-yn-17-ol,(17a)-
CAS52-76-6
Synonyms19-Nor-17a-pregn-4-en-20-yn-17-ol(6CI,8CI);17a-Ethynyl-17b-hydroxyestr-4-ene;3-Desoxy-17a-ethinyl-19-nortestosterone;Exlutena;Exluton;Fysionorm;NSC 73879;Orgametrol;Physiostat;D4-17a-Ethinylestren-17b-ol;
EINECS(EC#)200-151-4
Molecular FormulaC20H28O
Molecular Weight284.44
Chemical Properties
refractive index1.567
Safety Data

Safety An experimental teratogen. Experimental reproductive effects. Human reproductive effects by ingestion and implant routes: menstrual cycle changes or disorders, female fertility index, other fertility changes and effects on females. Questionable carcinogen. Used in oral contraceptives and in the treatment of dysfunctional uterine bleeding. When heated to decomposition it emits acrid smoke and irritating fumes.

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