Shandong Keyuan Pharmaceutical Co.,Ltd.

Clemastine Fumarate

• Category :

  Pharmaceuticals and Biochemicals

• Synonyms :

  clemastine hydrogen fumarate;(2R)-2-{2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl}-1-methylpyrrolidine;(2R)-2-{2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl}-1-methylpyrrolidine (2E)-but-2-enedioate;;CLEMASTINE;CLEMASTINE FUMARATE SALT;CLEMASTINUM;(2R)-2-[2-[(1R)-1-(4-CHLOROPHENYLETHOXY)]ETHYL]-1-METHYL-2-PYRROLIDINE FUMARATE;(+)-(2R)-2-[2-[[(R)-p-Chloro-alpha-methyl-alpha-phenylbenzyl]oxy]ethyl]-1-methylpyrrolidine;Pyrrolidine, 2-[2-[1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-, [R-(R*,R*)]-;Pyrrolidine, 2-2-(1R)-1-(4-chlorophenyl)-1-phenylethoxyethyl-1-methyl-, (2R)-;Pyrrolidine, 2-[2-[(p-chloro-��-methyl-��-phenylbenzyl)oxy]ethyl]-1-methyl-, (+)- (8CI);2-{2-[1-(4-chlorophenyl)-1-phenylethoxy]ethyl}-1-methylpyrrolidine;

• CAS NO :

  14976-57-9

• EC NO :

  239-055-2

• Molecular Formula :

  C₂₁H₂₆ClNO��C₄H₄O₄

• Molecular Weight :

  459.9624

• Main Specifications :

• InChI :

  InChI=1/C21H26ClNO.C4H4O4/c1-21(17-7-4-3-5-8-17,18-10-12-19(22)13-11-18)24-16-14-20-9-6-15-23(20)2;5-3(6)1-2-4(7)8/h3-5,7-8,10-13,20H,6,9,14-16H2,1-2H3;1-2H,(H,5,6)(H,7,8)/b;2-1+/t20-,21-;/m1./s1

• Packing :

  1kg 0.5kg AL FOIL BAG

• Product description :

  Molecular formula:C₂₁H₂₆CLNO . C₄H₄O₄
  Properties: white or white crystal powder, no smell, slight bitter, slightly dissolved in carbinol, slightly dissolved in chloroform or water.
  Spin degree: +15-18°
  Quality standard: CP2010 USP31
  Usage: antiallergic agent, used to treat tetter, hives, irritability coryza
  Verification:
  1.With TLC method, it should accord with specified rules.
  2. Infrared absorption spectrum should accord with sample spectrum
  Check:
  1.The liquor's clearness and color should accord with specification
  2.Dry weight loss: less than 0.5%
  3. Acidity: 3.2-4.2
  4. Heavy metal: less than 20PPM
  Content: the content of C₂₁H₂₆CLNO . C₄H₄O₄ should be 98.0-102.0% under dry status
  Packing:1kg 0.5kg AL FOIL BAG
  Functions: Antiallergic agent.

• Molecular Structure :