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Levonorgestrel

Levonorgestrel

    Levonorgestrel CAS:797-63-7 MF:C22H28O2 MW:312.45 Description White or practically white crystalline powder, odorless Specific Rotation -30°~-35° Melting Range 232~239℃,and melting range is not more than 4℃ Identification It complies with the test for specific optical rotation and melting point Infrared absorption spectrophotometry should be consistent with levonorgestrel CRS. Loss on Drying ≤0.5% Residue on Ignition ≤0.3% Limit of Ethynyl Group 7.81%~8.18% Chromatographic Purity Single Impurity ≤ 0.5% Total Impurities ≤ 2.0% Organic Volatile Impurties Ethanol≤5000ppm Particle size distribution d(0.9)≤10μm Assay 98.0% to 102.0% ,calculated on the dried basis