Sulfamethoxypyridazin/Sulphamethoxypyridazine base

CAS number: 80-35-3

Molecular formula: C11H12N4O3S

molecular weight: 280.303

Chemical structure:

Product name:    Sulfamethoxypyridazin
Expiry Date: Four years
Inspection Standard: EP7
ItemsSpecificationsResults
Identification:   

A. The infiareda bsorptions pectrum; B. The thin-layer chronalography;     C. Residuem eltsa t 102"Ct o 106"C D. The reactiono fprimary aromatica mines.                                               

Meets                                    

Meets                                  

103~104℃                             

Meets   

Melting Point     about 180℃ with decomposjlion181.2~182℃ , decomposition
CharacteristicsWhite or slightly yellowish, crystalline powder Meets                     
Appearance of solutionClear & not more intensely coloured than Y4 or BY4<BY4
Acidity≤0.5ml<0.5ml
Related substancesMeets ( ≤0.5%)Meets, <0.5%
Heavy Metals≤20 ppm<20 ppm
Loss on dryingNot more than 0.5%0.1%
Sulphated ashNot more than 0.1%0.05%
Assay99.0%~101.0%(The dried substance)99.9%(The dried substance)
Conclusion : Meets EP7 specifications