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1 Kilogram |
Negotiable |
Sulfamethoxazole Metoxal Sulfanilamide
BP standard
Sulfamethoxazole
Appearance |
A white or almost white crystalline powder |
Identification |
(a)Melting point: 169.0-172.0℃ (b)IR:As per the spectrum of sulfamethoxazole CRS (c)TLC: As per BP2002 (d)Chemical test:Give reaction of primary Aromatic amines |
Appearance of solution |
≤Y5 ;≤BY5;≤GY5 |
Acidity |
Not more than 0.3ml of 0.1M NaOH |
Related substances by TLC |
≤0.5 %
|
Heavy metals |
≤20 ppm
|
Loss on drying |
≤0.5 % |
Sulfated ash |
≤0.1% |
Assay(on dried basis) |
99.0-101.0% |
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