Chemical Name : Norethynodrel
CAS : 68-23-5
Synonyms: 17Alpha-ethynyl-17beta-hydroxy-19-nor-5(10)-androsten-3-one;17Alpha-ethynyl-17beta-hydroxy-5(10)-estren-3-one;17Beta-hydroxy-19-nor-17alpha-pregn-5(10)-en-20-yn-3-one;5(10)-Estren-17alpha-ethynyl-17beta-ol-3-one;Delta-5(10)-norethindrone;Norethyndrel;Norethynodrel
Tetra


![2-BOC-4,4-DIFLUORO-2,6-DIAZABICYCLO[3.2.0]HEPTANE](https://thsciimg.chemcd.cn/TS89728.gif)
