LevonorgestrelLevonorgestrel 左炔诺孕酮
Other names : D-Norgestrel
CAS: 797-63-7
M.F.: C21H28O2
M. W. : 312.45
Assay : 98%--102%
Specification : USP/ CP/BP
Appearance : white crystalline powder
Usage : An emergency contraceptive
Packaging : as your requirement