Hubei Xiangxi Chemical Industry Co., Ltd.

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β‐Arbutin

Arbutin is the active substance originated from natural plant. It can infiltrate into the skin quickly without affecting the concentration of cell multiplication and prevent of tyrosinase in the skin and the forming of melanin. By combined arbutin with tyrosinase, decomposition and drainage of melanin are accelerated, splash and fleck can be got ride of and no side effects are caused. It is one of the widey used materials that are popular at present.

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

Molecule structure:

Quality index

 

Q/XXHG03-2002

Appearance

white needle crystal

Content(HPLC)

≥99.5%

Paradioxybenzene limitation

≤2 ppm

Melting point

199 ~ 202(±0.5)

PH value

5.0~7.0    (1%aqueous solution)

Clarity of water solution

Transparency, colorless, none suspended matters

Light transmittance

≥97.5% (1%aqueous solution)

Specific rotatory power

-63~-67

Loss on drying

<0.5%

Infrared signature peak

1515cm-1   1220cm-1   1050±(5~8)cm-1

Arsenic content

<2 ppm

Heavy metal

<10ppm

Loss on drying <0.5%

Pathogen

Bacteria count<300CPU    Fungus<100CPU

Caution

      1、In the acid situation, Arbutin is easy to be dissolved.  Pay attention to controlling the  pH value above 6.0;

      2、At first,  Arbutin should be solved in a small quantity of water at 45℃ and then add it in to the sample at 45℃ after the cream emulsification.

      3、The description should involve some antioxidant, for example, sodium hydrogen sudium.

      4、While producing, it is able to cooperate with zwitterions surface activities and anions surface activities.

      5、 Adding some nature vegetable oli will advance Arbutin’s cooperation and function, including oleic acid and linoleic acid.

       6、It will improve absorption of Arbutin, such as Azone and Octadecyl dimethyl amine oxide.

       7、Recommend adding amount: 2-7%.