Product Introduction
Pterostilbene is a polyhydroxy stilbene compound, widely found in many natural plants such as grapes, blueberries, sword leaf dracaena, but because it was first discovered in red sandalwood, it was named as Pterostilbene.
Function
Pterostilbene is often used as anti-aging cosmetic raw materials in cosmetics.
Certificate Of Analysis
|
Product Name |
Pterostilbene |
Specification |
Company Standard |
|
Cas No. |
537-42-8 |
Manufacture Date |
2024.7.15 |
|
Quantity |
500KG |
Analysis Date |
2024.7.21 |
|
Batch No. |
ES-240715 |
Expiry Date |
2026.7.14 |
|
Items |
Specifications |
Results |
|
|
Appearance |
White Powder |
Conforms |
|
|
Assay |
≥99.0% |
99.21% |
|
|
Melting Point |
89℃-91℃ |
90℃ |
|
|
Loss on drying |
≤0.5% |
0.14% |
|
|
Residue on Ignition |
≤0.5% |
0.18% |
|
|
Total Heavy Metals |
≤10.0ppm |
Conforms |
|
|
Pb |
≤1.0 ppm |
Conforms |
|
|
As |
≤1.0 ppm |
Conforms |
|
|
Cd |
≤1.0 ppm |
Conforms |
|
|
Hg |
≤0.1 ppm |
Conforms |
|
|
Total Plate Count |
≤1000cfu/g |
Conforms |
|
|
Yeast & Mold |
≤100cfu/g |
Conforms |
|
|
E.coli |
Negative |
Negative |
|
|
Salmonella |
Negative |
Negative |
|
|
Staphylococcus |
Negative |
Negative |
|
|
Conclusion |
This sample meets the specifications. | ||
Inspection personnel：Yan Li Review personnel：Lifen Zhang Authorized personnel：LeiLiu
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