Item | Specification |
Appearance | White or off white crystalline powder |
Identification | IR, HPLC |
Melting point | 196℃~198℃ |
Loss on drying | ≤0.5% |
Heavy metals | ≤20ppm |
Residue on ignition | ≤0.2% |
Related impurities | Fipronil sufone ≤2.0% |
Sum of other impurities ≤0.5% | |
Sum of all impurities ≤2.5% | |
Residual solvent | Dichloromethane ≤0.06% |
Assay | 97.0%~103.0%, calculated on the dried basis |