


化學(xué)名稱:  | alpha-熊果苷  | 
INCI名稱:  | α-熊果苷  | 
英文名稱:  | Alpha-Arbutin  | 
CAS號:  | 84380-01-8  | 
原料報(bào)送碼:  | 001005-00817-2914  | 
HS編碼  | 2938909090  | 
化學(xué)式:  | C12H16O7  | 
分子量:  | 272.25  | 
中文別名:  | 阿爾法 熊果苷; α-熊果苷; 4-氫苯醌-alpha-D-吡喃葡萄糖甙; 對苯二酚-alpha-D-葡萄糖苷; 對-羥基苯-α-D-吡喃葡萄糖苷; A-熊果苷  | 
英文別名:  | alpha arbutin; (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-(4-hydroxyphenoxy)oxane-3,4,5-triol; α-Arbutin; 4-Hydroxyphenyl a-D-glucopyranoside  | 
Specification  | 標(biāo) 準(zhǔn) Standard  | 
外觀 Appearance  | 白色粉末或晶體 White crystlline Powder  | 
鑒別Identify  | 應(yīng)與圖譜對照一致 Corresponds qualitatively to the reference  | 
熔點(diǎn)Melting point  | 202.0℃~207℃  | 
pH值 pH value  | 5.0~7.0  | 
對苯二酚 Hydroquinone  | 未檢出 Negative  | 
比旋度 Specification Rotation  | +174.0°~+186.0°  | 
干燥失重 Loss on Drying  | ≤0.5%  | 
灼燒殘?jiān)?/span> Residue on Ignition  | ≤0.5%  | 
含量 Assay(drying basis)  | ≥99.0%  | 
純度 Purity(by HPLC,%area)  | ≥99.0%  | 
重金屬(鉛) Heavy metal(Lead)  | ≤20 ppm  | 
砷Arsenic  | ≤1.0ppm  | 
微生物檢測 Microbial Test  | |
總菌數(shù) Total Aerobic  | ≤100cfu/g  | 
霉菌和酵母 Yeast & Mold  | ≤50cfu/g  | 
大腸桿菌 E.coli  | 不得檢出/g Negative/g  | 
沙門氏菌 Salmonella  | 不得檢出/g Negative/g  | 
Package: In 25Kg net per fiber drum, inner polythene bags. We can provide the packing as per your request.  | |