Arbutin CAS NO.497-76-7

identification of product：

name: arbutin

synonym: beta-arbutin; arbutosie; arbutine; ursin; uresol

chemical name: hydroquinone-β-d-glucopyranoside; 4-hydroxyphenyl-beta-d-glucopyranoside

ctfa name: arbutus extract

cas#: 497-76-7

einecs number: 207-850-3

reach reference number: 05-2114278657-32-0000

chemical formula: c₁₂h₁₆o₇

physical and chemical properties：

appearance: white powder or needle crystal.

infrared signature peak: 1515cm-1 1220cm-1 1050±(5~8)cm-1

melting point/melting range: 196~200℃.

boiling point/boiling range: not available.

ph (1% soln/water): 5.0 ~ 7.0

flash point: not available.

decomposition temperature: not available.

density: not available.

solubility: arbutin is soluble in water, methanol or alcohol. arbutin is partially soluble in cold water. arbutin is insoluble in aether, chloroform or benzene.

usage:

• arbutin is used as skin lightening agents in the cosmetics, especially in advanced cosmetics which have function of lightening skin, sunscreen and dispelling freckle.

• reference addition of arbutin: 2.0~7.0%

• arbutin break down easily in the acidic environment, so the ph value of cosmetic system should be at more than 6.0

• the use of arbutin will be dissolved in the water under 50 ℃.

•cosmetic system containing arbutin should be added to the amount of antioxidants.

specification:

arbutin more than 99.5%.

hydroquinone less than 10 ppm.

insoluble particles in water less than 10 pcs per 100 grams arbutin.

package:

1 kilogram arbutin per bag, aluminum foil bag and pe bag lining.

storage:

notes: arbutin must be stored away from oxidizing agents. arbutin should be shielded from light.

storage conditions: keep container tightly sealed. arbutin should be stored in cool,dry conditions in well sealed containers.