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Tel: +008618049624045
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Product Name | Alpha Arbutin |
Other Name | 4-Hydroquinone-alpha-D-glucopyranoside; a-Arbutin |
Purity | 99% HPLC |
CAS NO | 84380-01-8 |
Molecular Formula | C12H16O7 |
Appearance | White crystal powder |
Molecular Weight | 272.25 |
ITEMS | Alpha arbutin | Beta arbutin |
CAS No | 84380-01-8 | 497-76-7 |
Whitening Function | Can effectively inhibit melanin at lower concentration, whitening effect is 10 times compare with Beta Arbutin. Recommend add amount 0.2-2% | <3% add amount,the whitening effect is not obvious |
Source | Enzyme fermentation | Bearberry Extract |
Stability | Higher stability, less prone to discoloration and degradation | Easily degradable |
Melting Point | 203-206(±0.5)℃ | 199-202(±0.5)℃ |
Optical rotation | + 176.0°- +184.0° | -63°~-67° |
Items | Standards | Results |
Physical Analysis | ||
Description | White Powder | Complies |
Assay | 99%(HPLC) | 99.2% |
Mesh Size | 100 % pass 80 mesh | Complies |
Ash | ≤ 5.0% | 2.85% |
Loss on Drying | ≤ 5.0% | 2.85% |
Chemical Analysis | ||
Heavy Metal | ≤ 10.0 mg/kg | Complies |
Pb | ≤ 2.0 mg/kg | Complies |
As | ≤ 1.0 mg/kg | Complies |
Hg | ≤ 0.1 mg/kg | Complies |
Microbiological Analysis | ||
Residue of Pesticide | Negative | Negative |
Total Plate Count | ≤ 1000cfu/g | Complies |
Yeast&Mold | ≤ 100cfu/g | Complies |
E.coil | Negative | Negative |
Salmonella | Negative | Negative |
Shipping | ||||
By Express | By Air | By Sea | ||
Suitable for under 50kg Fast: 3-7 days High cost Door to door service, easy to pick up the goods | Suitable for more than 50kg Fast: 3-7 days High cost Port to port, professional broker needed | Suitable for more than 500kg Slow: 7-45 days Low cost Port to port, professional broker needed |