Desloratadine
 
Product Name DESLORATADINE
IUPAC Name 8-Chloro-6,11-dihydro-11-(4-piperidinylidene)-5H- benzo [5,6] cyclohepta [1,2,b]pyridine
C.A.S. No 100643-71-8
Molecular Formula C19H19ClN2
Formula Weight 310.83
Therapeutic category Antihistamine


SR. NO.
TEST
SPECIFICATION
1
Description
  White to off white powder
2
Solubility
  Practically insoluble in water, soluble in methanol and
  chloroform
3
Identification:
By IR
  The infrared absorption spectrum of the substance
  being examined in mineral oil should be concordant
  with the Infrared absorption spectrum obtained from
  Desloratadine working standard.
4
Melting range
  Between 150°C to 160°C  
5
Loss of drying (105oC/3 hrs.)
  Not more than 1.0 % w/w
6
Residue on ignition
  Not more than 0.2 % w/w
7
Heavy metals
  Not more than 20 ppm
8
Related substances (By HPLC)
1 Single impurity
2 Total impurities

 

  Not more than 0.5 %
  Not more than 1.0 %

9
Assay (By HPLC)
  98.0 % to 101.0 % of C19H19ClN2, calculated on the
  dried basis
10
Additional test
Residual solvent (By GC)
Methyl alcohol
  Not more than 3000 ppm.

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