|
Property |
Specification |
|
Character |
White fine power or crystals |
|
Assay(HPLC) |
97∽102% |
|
Melting point |
199∽201（±0.5）℃ |
|
Specific optical rotation |
[a]D20= -62.0°∽-68.0° |
|
Infrared characteristic peak |
|
|
Solubility |
Soluble in water、 |
|
Transparency in water |
Transparent colorless no suspended |
|
PH(1% water solution) |
5.0∽7.0 |
|
Loss on drying |
Max. 0.5% |
|
Sulphated ash |
Max. 0.1% |
|
Heavy metals |
Max. 10PPM |
|
Arsenic |
Max. 1PPM |
|
Plumbum |
Max. 2PPM |
|
Microbiological control |
|
|
Total plate count |
Max. 1000cfu/g |
|
Yeast & mold |
Max. 100cfu/g |
|
Hydroquinone |
Max. 10ppm |
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
