Clemastine Fumarate - Product

 Chongqing  -  China
Clemastine Fumarate
  • Clemastine Fumarate
Clemastine fumarate
Molecular Formula C21H26ClNO.C4H4O4 Molecular Weight 459.97
CAS Registry Number 14976-57-9
EINECS 239-055-2

White or off-white crystalline powder;Clarity and color of solution Test solution is colorless or not more intensely colored than Color matching fluid
Melting Point 140~...

Description of the Product

Clemastine fumarate  
Molecular Formula       C21H26ClNO.C4H4O4 Molecular Weight         459.97 
CAS Registry Number  14976-57-9 
EINECS       239-055-2  

White or off-white crystalline powder;Clarity and color of solution   Test solution is colorless or not more intensely colored than Color matching fluid 
Melting Point   140~145℃ 
Infrared Absorption ;TLC 
Specific rotation  [α]D20
+15°~+18 °(c = 1 in methanol) 
PH   3.2~4.2 
Loss on drying   ≤0.5% 
Heavy Metal   ≤20ppm 
Individual impurity≤ 0.5%
Total Impurities ≤1.0% 
Residual solvents   500ppm(Ethanol) 
Assay(dried base)   98.0%~102.0%  
Stability data is available.

Second generation H1 receptor antagonistsAntihistamines.

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