Norethindrone Acetate

Chemical Name: 3-Oxo-19-nor-17α-pregn-4-en-20-yn-17-yl acetate (as per EP); 17-Hydroxy-19-nor-17α-pregn-4-en-20-yn-3-one acetate (as per USP)

Synonym: (2S)-Narirutin ; (2S)-7-[[6-O-(6-Deoxy-a-L-mannopyranosyl)-b-D-glucopyranosyl]oxy]-2,3-dihydro-5-hydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one;