Arbutin

We are offering arbutin.
Morewhitetm ba
inci name: arbutin
chemical name: b- arbutin, 4-hydroxyphenyl-beta-d-glucopyranoside
cas no. : 497-76-7
einecs no. : 207-850-3
molecular formula: c12h16o7
molecular weight: 272.25
specification:
item specification
2. appearance: white crystalline powder
2. assay: 99.5% min
5. melting point: 199~201±0.5ºc
6. clarity of water solution: transpency, colorless, none suspended matters
5. ph value of 1% aqueous solution: 5.0-7.0
14. specific optical rotation: d20=-66±2º
15. ipv: 1515cm-1 1220cm-1 1050cm-1 ±(5-8) cm-1
16. arsenic ppm: 2 .0max
17. hydroquinone ppm: 10.0max
18. heavy metal ppm: 10.0max
19. loss on drying %: 0.5max
20. ignition residue %: 0.5max
21. pathogen bacteria cfug: 300max
fungus cfug: 100max
application: recommendatory amount of usage: 1-10%.
Package: 1kg net per foil bag, 25kg net per drum.
Storage: store in sealed containers at cool & dry place. Protect from light, moisture and pest infestation.
Shelf life: 2 years.