Arbutin CAS NO.497-76-7

1.Arbutin for cosmetics 2.Applied in cosmetics&pharmaceutical 3.Pro manufacturer since 1998 4.Sample for ur test&fast deliver …

1.Arbutin for cosmetics2.Applied in cosmetics&pharmaceutical3.Pro manufacturer since 19984.Sample for ur test&fast deliver ItemSpecificationResultsAppearanceWhite crystalline powderWhite crystallineAssay99.0%Min 99.90%Melting  point203~206±1°C204.9-206.0Clarity of water solutionTranspency, colorless, none suspended mattersPass pH value of 1% aqueous solution5.0~7.06.45                 Specific optical ratation[α]D20=+176~184º+179.4 Arsenic≤2 ppmpassHydroquinone≤10 ppmpassHeavy metal≤10 ppmpassLoss on drying≤0.5%0.05%Ignition  residue≤0.5%0.05%PathogenBacteria≤300cfu/gFungus≤100cfu/g<20<20Conclusion pass  Product NameArbutinMolC12H16O7 / 272.25CAS NO.497-76-7Purity90%Specification90% by HPLC extracted from Arbutus leafCharacteristicsWhite needle crystalline or fine powderEffects1. To reduce inflammation and resist irritations;2. Skin shinningApplicationTop level cosmetics, creamsDosage-StoragePlease keep it away from direct light, and wet. 2 years shelf lifePackage25KG/fiber drum