High Performance Atracurium besylate 64228-81-5 - Beta Arbutin 497-76-7 Skin brightening – Neore
High Performance Atracurium besylate 64228-81-5 - Beta Arbutin 497-76-7 Skin brightening – Neore Detail:
Payment: T/T, L/C
Product Origin: China
Shipping Port: Beijing/Shanghai/Hangzhou
Order (MOQ): 1kg
Lead Time: 3 working days
Production capacity: 1000kg/month
Storage condition: Stored in cool, dry place, room temperature.
Package material: drum
Package size: 1kg/drum, 5kg/drum, 10kg/drum, 25kg/drum
Introduction
β-Arbutin is used as a whitening ingredient for controlling the generation of melanin pigments, which are substances causing discoloration and freckles.
It is known as a substance contained in ericaceous herbs called bearberry leaf. Discoloration and freckles occur due to reactive oxygen produced in skin by exposure to UV in sunlight, stress, atmospheric pollution, etc., which activates tyrosinase and the activated enzyme promotes the conversion of tyrosine in melanocytes (pigment cells) to melanin pigments. β-Arbutin is said to demonstrate whitening effects by reducing the production of melanin pigments by working directly on tyrosinase in melanocytes.
Specification (assay 99.5% by HPLC)
|
Test Items |
Standard |
| Appearance | White crystalline powder |
| Assay | 99.5% min |
| Melting point | 198.5-201.5℃ |
| Clarity of water solution | Transparency, colorless, none suspended matters |
| PH value of 1% aqueous solution | 5-7 |
| Specific optical rotation | [α]D20=-66±2° |
| Arsenic | ≤2ppm |
| Hydroquinone | ≤10ppm |
| Heavy metal | ≤10ppm |
| Loss on drying | ≤0.5% |
| Ignition residue | ≤0.5% |
| Pathogen | Bacteria ≤300cfu/g |
| Fungus ≤100cfu/g |
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By Edwina from venezuela - 2018.09.16 11:31
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By Riva from Albania - 2018.02.21 12:14
