| Customization: | Available |
|---|---|
| CAS No.: | 25608-40-6 |
| Formula: | C4h7no4 |
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| Product Name | Poly-L-aspartic acid 99% |
| CAS No. | 25608-40-6 |
| Purity | 99% |
| Appearance | Powder/Liquid |
| Molecular Formula | C4H7NO4 |
| EINECS No. | / |
| 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 | ||
| Crystallinity | meets the requirements. | 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% | |
| 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% | |
| Microbiological Analysis | |||
| Total plate count | ≤1000cfu/g | Complies | |
| Yeast and Moulds | ≤100cfu/g | Complies | |
| E. Coli. | Absent | Negative | |
| Salmonella | Absent | Negative | |
| S.aureus | Absent | Negative | |
| Storage | Preserve in well-closed, light-resistant and airtight containers. | Complies | |
In 25kgs or 250kgs drum
Vanessa Zhao
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