
Product Name | Ectoine | Batch Number | GW20220813A | ||
Quantity | 30kg | Manufacture Date | Aug.. 13, 2022 | ||
Expiry Date | Aug. 12, 2024 | Analysis Date | Aug.. 13, 2022 | ||
Item | Specification | Result | |||
Appearance | White or similar white crystal or powder | Confirm | |||
Identification | Consistent with the reference spectrum | Confirm | |||
Assay | ≥98.0% | 99.1% | |||
pH (2%) | 6.0~8.0 | 7.0 | |||
Transparency (2%, A550nm) | ≥98.0% | 98.2% | |||
Specific rotation | +139°~+145° | 140.1° | |||
Chloride | ≤0.05% | <0.01% | |||
Loss on drying | ≤1.0% | <1.0% | |||
Ash | ≤1.0% | Confirm | |||
As | ≤2 ppm | Confirm | |||
Pb | ≤10 ppm | Confirm | |||
Sb | ≤ 1 ppm | Confirm | |||
Cd | ≤ 5 ppm | Confirm | |||
Ni | ≤ 10 ppm | Confirm | |||
Cr | ≤ 5 ppm | Confirm | |||
Hg | ≤ 1 ppm | Confirm | |||
Bacteria counts | ≤100 cfu/g | <100 cfug | |||
Mold & Yeast | ≤50 cfu/g | <10 cfu/g | |||
Staphylococcus aureus | Negative | Negative | |||
Thermotolerant coliforms bacteria | Negative | Negative | |||
Pseudomonas aeruginosa | Negative | Negative |