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Sulfadimethoxine
CAS number: 122-11-2
Molecular formula: C12H14N4O4S
Molecular weight: 310.33
Chemical Structure:
Product Name | Sulfadimethoxine |
Shelf Life | 2 years |
Packing | 25kg/drum |
Specification | USP |
Items | Standard |
Description | Practically white;crystalline powder |
Identification | A:IR Conform to the RS spectrum |
B:UV At 272nm do not differ by more than 3.0% | |
C: A yellow color is produced | |
D: A red-orange precipitate is formed | |
Melting range | 197-202? |
Loss on drying | =0.5% |
Residue on ignition | =0.1% |
Heavy metals | =0.002% |
Assay(HPLC) | 98.0%-102.0% |
Related Substances | 4-amino-2,6-dimethoxypyrmidine =0.2% |
4-(N4-Acetylaminobenzensulfony)-2,6-dimethoxypyrmidine=0.2% | |
Single unknown impurity =0.1% | |
Total impurity | =1.0% |
Residual Solvents | Toluene =200ppm |
Pyridine =100ppm | |
Glacial acetic acid =5000ppm |
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