Customization: | Available |
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Transport Package: | 1.1 Kilogram Per Aluminum Foil Bag with One Plast |
Specification: | 99% |
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Test items | Specifications | Test results | |
Characters | A white, or almost white, crystalline powder or white or colourless, acicular crystals, slightly soluble in water, freely soluble in ethanol(96 percent), sparingly soluble in methylene chloride. | Complies | |
Identification | Melting point 158ºC to 161ºC | 158.6ºC-160.2ºC | |
The IR spectrum of sample complies with Salicylic acid CRS | Complies | ||
Appearance of solution | Solution is clear and colourless | Clear | |
Chlorides | ≤100ppm | <100ppm | |
Sulfates | ≤200ppm | <200ppm | |
Heavy metals | ≤20ppm | <20ppm | |
Loss on drying | ≤0.5% | 0.03% | |
Residue on ignition | ≤0.05% | 0.03% | |
Related substances | 4-hydroxybenzoic acid | ≤0.1% | 0.001% |
4-hydroxyisophthalic acid | ≤0.05% | 0.002% | |
Phenol | ≤0.02% | N.D | |
Any other impurities | ≤0.05% | N.D | |
Total impurities | ≤0.2% | 0.002% | |
Assay(on dried basis) | Contains C7H6O3 99.0%-100.5% | 99.6% | |
Conclusion | The product comply with the requirements of BP2020/EP10.0/USPNF2022. |