Pharmaceutical sulfonamides
※ N-Acetylsulfanilyl Chloride(ASC)
※ Sulfamethoxazole Sodium(SMZ-Na)
※ Sulfachlorpyridazine sodium(SPZ)
※ Sulfamethoxydiazine sodium(SMD-Na)
※ Sulfachloropyrazine,sodium
salt(SPDZ)

※ Sulfathiazole sodium(ST-Na)
※ Sulfadimidine Sodium(SM2-Na)
※ Sulfadiazine Sodium(SD-Na)
※ Sulfadimidine(SM2)
※ Sulfadiazine(SD)
※ Sulfanilamide(SN)
Fine chemicals
※ Hydroxylamine hydrochloride
※ Guanidine nitrate (Competitive products)
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Sulfamethoxypyridazine
Items                                     Specification                  Results
Identification                        Positive                           Passed
Melting point                       180.0~183.0℃               180.0~181.0℃  
Clarity of solution                  Clear                                 Passed
colour of solution                  ≤BY4                               Passed
Acidity                                      ≤0.5ml                             Passed 
Loss on drying                        0.5%                               0.30%
Heavy metals                       ≤20ppm                            Passed
Residue on ignition             ≤0.1%                                0.04%
Related substances             ≤0.5%                             Passed
Assay                                        99.0~101.0%                 99.9%
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