Arbutin CAS NO.497-76-7

Packing 25kg/drum, 5kg/drum itemSpecAppearancewhite crystalline powderAssay≥99.5%Melting point(°C)199 ~ 202(±0.5)Clari…

Packing 25kg/drum, 5kg/drum itemSpecAppearance white crystalline powderAssay≥99.5%Melting point(°C)199 ~ 202(±0.5)Clarity of water solutionTransparency , colorless, none suspended matterspH value of 1%aqueous solution5.0~7.0Heavy metal<10ppmSpecific optical rotation-68~ -64Infrared signature peak 1515cm-1   1220cm-1   1050±(5~8)cm-1Arsenic≤2 ppmLoss on drying≤0.5%Ignition residue≤0.5%Hydroquinone≤10ppmPathogenBacteria count≤300CPUFungus≤100CPU