사양
- IUPAC Name: (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-(4-hydroxyphenoxy)oxane-3,4,5-triol
- CAS Number: 84380-01-8
- Chemical Formula: C12H16O7
- Molecular Weight: 272.25
- EC Number: 440-470-8
- Assay: alpha-Arbutin ≥99.5%
- Appearance: White crystals or crystalline powder
- Loss on Drying: ≤1.0%
- Ignition residue: ≤0.5%
- Melting point: 202.0~210℃
- Specific optical rotation: +175°- +185°
- Total Heavy Metals: ≤10ppm
- As: ≤2ppm
- Total Plate Count: ≤1000CFU/g
- Yeast & Mold: ≤100CFU/g
- E.Coli: Negative
- Salmonella: Negative
- Storage: Store in cool and dry places. Keep away from strong light and heat
- Packing: By 25kgs/Drum, inner by double plastic bag
- Shelf life: 24 months under the above condition,and in it’s original package
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