Appearance :White or almost white crystalline powder.
Specific optical rotation: -469℃ ~ -485℃
Loss on drying :≤0.5%
Residue on ignition: ≤0.1%
Assay :98.0%~102.0%
用途:孕激素藥物,可用于治療痛經(jīng)、緩解經(jīng)前綜合征、治療子宮內膜異位癥和異常子宮出血
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