NaturChem Barcelona

Promethazine Hcl BP

ITEMS SPECIFICATIONS
Characters A white or faintly yellowish crystalline powder
Identification A,B,D positive reaction
 Acidity (PH) 4.0   ̴ 5.0 (PH)
Solubility Very soluble in water, freely soluble in ethanol (96 per cent) and in methylene chloride
Melting point About 222° C
Related substances  
Impurity A ≤ 0.1%
Impurity B ≤ 0.8%
Impurity C ≤ 0.2%
Impurity D ≤ 0.1%
Unspecified impurity ≤ 0.10%
Total impurity ≤ 1.2%
Heavy metals ≤ 10ppm
Loss on drying ≤ 0.50%
Sulphated Ash ≤ 0.10%
Assay 99.0%   ̴ 101.0%
Solvent residue (acetone) ≤ 0.50%

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