Norethisterone & acetateNorethisterone & acetate 
CAS No.: 51-98-9 
Chemical Name: D(-)-17a-ethinyl-17?-hydroxy-18-methyl-estra-4-ene-3-one 
Chemical Formula:C22H28O3 
19-Nor-4-Androsten-3,17-dione 
Description:white or almost white crystalline powder 
Specification:CP2000/USP
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