We offter two kinds of Arbutin: Alpha-arbutin and beta-arbutin

* English name: Arbutin, Arbutosie, Ursin, Uresol etc.

* CTFA name: Arbutus extract

* CAS register name and No. : Arbutin No. 497-76-7

* Chemical name: Hydroquinone-β-D-glucopyranoside

* Molecular formula: C12H16O7

* Molecular weight: 272. 25

1) Alpha-arbutin:

* White crystals or crystalline powder, IR spectrum conforms

* Specific rotation[α]D20: +174. 0 degree~+186. 0 degree

* Assay (HPLC): 99. 5% min.

* Loss on drying: 0. 5% max.

* Residue on ignition: 0. 5% max.

* PH: 5. 0~7. 0

* Standard: In-house

* Package: 1kg/tin or 5kg/tin

2) Beta-arbutin:

* Appearance: White needle crystals or powder

* Assay (HPLC) NLT 99. 5%

* Melting point 198. 5~201. 5 degree

* Hydroquinone NMT 20ppm

* Loss on drying NMT 0. 5%

* Standard: Q/320282PAD001-2006

* Package: 25kg net per fiber drum