Arbutin

You are here: Home » Products » Cosmetics & Personal Care » Arbutin

ITEM	SPECIFICATION	RESULTS
Appearance	White crystals or crystalline powder,IR spectrum conforms	White crystalline powder
Assay	99.50%Min （HPLC 法）	99.60%
Melting point	202.0~210℃	207
Clarity of water solution	Transparent,colorless,none suspended matters	Conforms
pH	5.0～7.0	5.98
Specific rotation 【α】D20	+175.0°～+185.0	179.2°
Loss on drying	≤ 0.5%	0.07%
Ignition residue	≤ 0.5%	0.05%
Hydroquinone	Negative	Complies
Lead	<10mg/kg	＜10
Arsenic(As)	≤2mg/kg	＜2
Mercury	≤1mg/kg	＜1
Methanol	≤2000mg/kg	＜1000
Aerobic Bacterial Count	≤1000cfu/g	Conforms
Molds and Yeast Count Conforms	≤100cfu/g	Conforms
Fecal Coliforms	Negative	Conforms
Staphylococcus Aureus	Negative	Conforms
PseudomonasAeruginosa	Negative	Conforms
Storage: Store in cool&dry place,keep away from strong light and heat
Shelf life: 24 months when properly stored

ITEM	SPECIFICATION	RESULTS
Appearance	White crystals or crystalline powder,IR spectrum conforms	White crystalline powder
Assay	99.50%Min （HPLC 法）	99.60%
Melting point	202.0~210℃	207
Clarity of water solution	Transparent,colorless,none suspended matters	Conforms
pH	5.0～7.0	5.98
Specific rotation 【α】D20	+175.0°～+185.0	179.2°
Loss on drying	≤ 0.5%	0.07%
Ignition residue	≤ 0.5%	0.05%
Hydroquinone	Negative	Complies
Lead	<10mg/kg	＜10
Arsenic(As)	≤2mg/kg	＜2
Mercury	≤1mg/kg	＜1
Methanol	≤2000mg/kg	＜1000
Aerobic Bacterial Count	≤1000cfu/g	Conforms
Molds and Yeast Count Conforms	≤100cfu/g	Conforms
Fecal Coliforms	Negative	Conforms
Staphylococcus Aureus	Negative	Conforms
PseudomonasAeruginosa	Negative	Conforms
Storage: Store in cool&dry place,keep away from strong light and heat
Shelf life: 24 months when properly stored

Product Category