Beta-Arbutin
INCI Name: Beta-Arbutin
Synonyms: Arbutine, p-arbutin, beta-arbutin, ursin
CAS No.: 497-76-7
EINECS No.: 207-850-3
Molecular Formula: C12H16O7
Molecular Weight: 272.26
Structural Formula:

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

Property Specification
Appearance White to light yellow powder or crystalline
Assay(HPLC) Min 99.5%
Melting point 199~201
Clarity of water solution Transparency, colorless, none suspended matters
pH(1% aqua) 5.0~7.0
Optical rotation[α ]20D -64~ -66(C=3)
IPV 1515cm-1 1220cm-1 1050cm-1
± (5-8)cm-1
Arsenic Max 2PPM
Moisture ≤ 0.5%
Hydroquinone(HPLC) Max. 10PPM
Heavy metals Max. 10PPM
Loss on drying Max. 0.5%
Pathogen Bacteria: Max. 300CPU
Fungus: Max. 100CPU

Applications:
Arbutin, a highly effective depigmenting and/or lightening composition is accepted by world, so it was frequently used as an additive ingredient in the cosmetics or dermatological substance, it can effectually inhibit the formation of melanin.
Rbutin 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.

Stability and Storage:
Notes: Arbutin must store away from oxidizing agents. Arbutin should shield from light.
Storage conditions: Keep container tightly sealed. Arbutin should store in cool, dry conditions in well sealed containers.

Package: 1kg/bag, aluminum foil bag and PE bag lining. 20 and 25bags/drum, paper fiber drum. Packaging materials is in line with the requirements of FDA. Disposal of used packagings ask official regulations please.

Shelf life: 24 months