alpha-Arbutin
CAS No.: 84380-01-8
Product Name: alpha-Arbutin
CAS#84380-01-8
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
CAS#84380-01-8
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
Description
Spec of alpha-Arbutin :
| Items | Specification | Results |
| Assay(HPLC,area) % | ≥99.95 | 99.99 |
| Hydroquinone ppm | Negative | Negative |
| Description | white or white-like crystalline powder | Conformed |
| Melting point °C | 202.0-207.0 | 205.3-206.4 |
| Specific rotation | [a]20D-+174.0°~+186.0° | +179.97° |
| Infra-red peak value | 1514cm-1 1229 cm-1 1215 cm-1 1059 cm-1 1034 cm-1 |
Conformed |
| Solubility | Soluble in water slightly soluble in ethanol | Conformed |
| Clarity | Solution should be clarify, none suspended matters | Conformed |
| pH(1% of aqueous) | 5.0-7.0 | 5.6 |
| Loss on drying % | ≤0.5 | 0.04 |
| Residue on ignition % | ≤0.5 | 0.02 |
| Heavy metal ppm | ≤10 | <10 |
| Arsenic ppm | ≤2 | <2 |
| Total Plate count cfu/g | ≤100 | <10 |
| Molds and Yeast cfu/g | ≤50 | <10 |
| E.Coli | Negative | Negative |
| Staphylococcus aureus | Negative | Negative |
| P.aeruginosa | Negative | Negative |
