β-Arbutin Arbutin CAS:497-76-7
Name: β-Arbutin
CAS:497-76-7
MF: C12H16O7
ITEMS |
SPECIFICATIONS |
Appearance |
White crystalline powder |
Assay |
≥99.5% |
Hydroquinone |
≤20ppm |
Melting point |
199~201℃ ±0.5℃ |
Specific optical rotation |
[α]D20= -66±2° |
Clarity of water solution |
Transparency, colorless, non suspended matters |
Infrared peak value |
1515 cm-1 1220cm-1 1050cm-1 ± (5 ~ 8)cm-1 |
Arsenic |
≤2ppm |
PH value |
5.0 ~ 7.0 |
Loss on drying |
≤0.5% |
Heavy metals |
≤20ppm |
Ignition residue |
≤0.5% |
Bacteria count |
Bacteria: ≤300cfu/g Fungus: ≤100cfu/g |
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