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Test | Specification | Result | |
Appearance | White or off white crystalline powder | Conform | |
Identification | (1)UV | Max 209nm,248nm,267nm,310nm | Conform |
(2)IR | Conforms with working reference | Conform | |
Water (removal of crystal water) | ≤ 1.0% | 0.82% | |
Residue on ignition | ≤ 0.10% | 0.08% | |
Heavy metal | ≤ 10ppm | Conform | |
Melting point | 48~50ºC | 48.5~49.5ºC | |
Total impurity | ≤ 0.50% | 0.32% | |
Assay (HPLC) | 98.0-102.0% | 99.35% | |
Conclusion | Meets in-house specification |