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Levonorgestrel (or l-norgestrel or D-norgestrel) is a second generation synthetic progestogen used as an active ingredient in some hormonal contraceptives.
Levonorgestrel (CAS: 797-63-7 )
M.F.: C21H28O2
Purity: 99.0% min
Appearance White crystalline powder Identification IR absorption Specific rotation & melting range distinguishing it from Norgestrel Melting range: 232~239 deg C Specific Rotation -30~ -35 Loss on Drying 0.5% Residue on Ignition 0.3% Ethynyl Group 7.81~8.18% Other substance Total impurities=2.0% Any individual impurity=0.5% Assay 98.0~102.0% Packing: 1kg/bag, 25kg/drum
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