Suppliers with verified business licenses
Audited Supplier 
| Testing Item | Standard | Result |
| Appearance | white powder | conforms |
| Assay | 98%~101% | 99.5% |
| Loss on drying | ≤5.0% | 1.5% |
| Heavy metals | ≤20 mg/kg | conforms |
| Residual Solvent (Methanol) | ≤0.3% | 0.01% |
| Nitrogen determination | 5.7%~6.0% | 5.74% |
| Content of calcium | 8.2%~8.6% | 8.37% |
Suppliers with verified business licenses
Audited Supplier 
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