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Nanjing Elegant Nutraceuticals Co.,Ltd.
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arbutins
View more specifications arbutins for you
| Product Name: |
arbutins |
| Model No.: |
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| Place of Origin: |
Jiangsu |
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Description
Specifications:
1) Color and clarity of solution: clear, colorless without floaters
2) pH value (in 1% solution): 5.0 ~ 7.0
3) Specific rotation[α] D20: -63 ~ -66o
4) Melting point: 197 ~ 201oC
5) Loss on drying: ≤1%
6) Heavy metal (Pb): ≤10ppm
7) Hydroquinone: ≤20ppm
8) Assay (by HPLC): ≥99%
