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Levonorgestrel

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  Post Date: Apr 27,2017
  Expiry Date: Oct 24,2017
  Detailed Description: Cas No. :797-63-7 Specs:USP29 & EP5.0
Appearance White crystalline
powder
Identification IR absorption
Specific rotation & melting range
distinguishing it from Norgestrel
Melting range 232~239
Specific Rotation -30~ -35
Loss on Drying ≤0.5%
Residue on Ignition ≤0.3%
Ethynyl Group 7.81~8.18%
Other Steroids Total impurities≤
2.0%
Any individual impurity≤0.5%
Assay 98.0~102.0%

  CAS Registry Number:

797-63-7
  Synonyms: ;Levonorgestrel;Norgestrel (L-);13-ethyl-17-alpha-ethynyl-17-beta-hydroxy-4-gonen-3-one;13-ethyl-17-alpha-ethynylgon-4-en-17-beta-ol-3-one;13-ethyl-17-hydroxy-19-dinor-17-alpha-pregn-4-en-20-yn-3-on(+)-1;17-alpha-ethinyl-13-beta-ethyl-17-beta-hydroxy-4-estren-3-one;17-beta-hydroxy-18-methyl-19-nor-17-alpha-pregn-4-en-20-yn-3-one;17-ethynyl-18-methyl-19-nortestosteron;17-ethynyl-18-methyl-19-nortestosterone;18-methyl-17-alpha-ethynyl-19-nortestosterone;(14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one (non-preferred name);
  Molecular Formula: C21H28O2
  Molecular Weight: 312.45
  Molecular Structure: 797-63-7 D(minus)-norgestrel
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R20/21/22:;
R40:;
  Safety Description: S22:;
S36:;

  Company: Beijing Keyifeng (KYF) Biotech Develop. Co., Ltd.,     [ China ]          
  Contact: CATHY GUO
  Tel: +86-10-61568551
  Fax: +86-10-61568551
  Email: sales@kyfpharm.com
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