Pharmaceutical Products
Description
Levonorgestrel
18,19-Dinorpregn-4-en-20-yn-3-one,13-ethyl-17-hydroxy-,(17α)-(-)-(-)-13-
Ethyl-17-hydroxy-18,19-dinoxr-17α-pregn-4-en-20-yn-3-one [797-63-7]
Quality standard:
USP25
Identification:
A: Infrared Absorption
Melting range: 232℃~ 239℃
Specific rotation: between -30°and -35°
Loss on drying:≤0.5 %
Residue on ignition:≤0.3%
Limit of ethynyl group: 7.81%~8.18%
Chromatographic purity:
Single impurity≤0.5%
Sum of impurities≤2.0%
Assay: 98%~102%
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Hubei Yuancheng Gongchuang technology Co., Ltd.
pharmaceutical,food additive
Address: 496#Zhongshan Road,Wuchang District,
Wuhan, Hubei
China, 430064
Tel: 86-027-88083301
Fax:
