Doxofylline
Doxofylline
Product Description:
Our Reference Specification, for more details, pls contact us for COA, MSDS and certification:
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Item | Standard | Test Results |
Identification | A.H-NMR:Comply with the structure | Complies |
B.LC-MS:Comply with the structure | Complies | |
C.The IR spectrum of sample should be identical with that of reference standard. | Complies | |
D.HPLC-ESI-MS The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. | Complies | |
Loss on drying | ≤2.0% | 0.19% |
Heavy metals | ≤10 ppm | <10ppm |
Water | ≤1.0% | 0.1% |
Sulphated ash | ≤0.5% determined on 1.0 g. | 0.009% |
Residue on ignition | ≤0.1% | 0.03% |
Related Substances | Unspecified impurities: for each impurity ≤0.10% | <0.10% |
Total Impurity ≤0.5% | 0.18% | |
Purity | ≥99.0% | 99.7% |
Assay | 99.0%~101.0% (anhydrous substance). | 99.8% |
Storage | Preserve in well-closed, light-resistant and airtight containers. | Complies |
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