Customization: | Available |
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CAS No.: | 2058-46-0 |
Formula: | C22h25cln2o9 |
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Test Item | Specifications |
Appearance | Yellow crystalline powder |
Identification | The retention time of the main peak is consistent with that of the main peak in the control map. |
Color reaction | |
Chloride reaction | |
pH | 2 .3 to 2.9 |
Sulfated ash | ≤0.2% |
Light -absorbing impurities (430nm) | ≤0.50 (anhydrous substance) |
Light -absorbing impurities (490nm) | ≤ 0.20 (anhydrous substance) |
Water | ≤ 2.0% |
Related substances | Impurity A: NMT 0.5% |
Impurity B: NMT 1.0% | |
Impurity C: NMT 2.0% | |
Impurity D: NMT 0.2% | |
Impurity E: NMT 0.2% | |
Any other impurity:NMT 0.1% | |
Sum of impurities D, E and F: NMT 1.0% | |
Total impurity:NMT3.5% | |
Assay | 94.5% to 102.0% (anhydrous substance) |