99.5% Beta Arbutin
Product description
Arbutin
Arbutin synthesized by our company owns high purity and excellent quality. Almost no hydroquinone can be examined. It is the only arbutin product that can meet this high standard.
English name: Arbutin, Arbutosie, Ursin, Uresol and others
CTFA nameArbutus extract
CAS register name and No.: Arbutin No.497-76-7
Quality index
| Q/XXHG01-2002 |
Appearance | white needle crystal |
Content(HPLC) | ≥99.5% |
Paradioxybenzene limitation | ≤2 ppm |
Melting point | 199 ~ 202(±0.5) |
PH value | 5.0 ~ 7.0 (1% water solution) |
Clarity of water solution | transparent and colorless |
Light transmittance | ≥97.5% (1% water solution) |
Specific rotatory power | -63~-67 |
Loss on drying | <0.5% |
Infrared signature peak | 1515cm-1 1220cm-1 1050±(5~8)cm-1 |
Arsenic content | <2 ppm |
Heavy metal | <10ppm |
Pathogen | Bacteria count<300CPU Fungus<100CPU |
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