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更新时间:2016-06-29 19:25:16浏览次数:580次

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产品简介

D-*

详细介绍

D-* 基本信息:

Cas号 分子式 分子量 别名
50-70-4 C6H14O6 182.18 D-* ;山梨糖醇,D-山梨糖醇,*,清凉茶醇,花楸醇,蔷薇醇,己六醇

说明介绍:

性状 有甜味,有吸湿性。溶于水(235g/100g水,25℃)、甘油、丙二醇,微溶于甲醇、乙醇、醋酸、*和乙酰胺溶液。几乎不溶于多数其他有机溶剂。存在于各种植物果实中。可燃。  
质量标准  
  项目Item                       分析纯
(AR)
含量(C6H14O6)Assay,%                       ≥ 98.0
灼烧残渣(以硫酸盐计)Ignition residue,%        ≤ 0.1
氯化物(Cl)Chloride,%                          ≤ 0.003
硫酸盐(SO4)Sulfate,%                          ≤ 0.003
重金属(以Pb计)Heavy metals,%                  ≤ 0.001
还原糖Reducing sugar,%                        ≤ 0.4
干燥失重Loss on drying,%                      ≤ 0.8 
铁(Fe), %                                     ≤ 0.0005
镍(Ni),%                                      ≤ 0.0002
砷(As),%                                      ≤ 0.00013
品级Grade                               超纯级  
 (Ultra pure)
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.5% (HPLC)
比旋光度Specific rotation [a]20/D       −1.5±0.3°, c = 10% in H2O
甜度sweetness                           0.6 × sucrose
不溶物insoluble matter,                 passes filter test
灼烧残渣Residue on ignition             ≤0.1% (as SO4)
干燥损失loss on drying                  ≤0.5% , 20 °C (HV)
pH                                      5.0-7.0 (25 °C, 1 M in H2O)
水溶性solubility H2O:                   soluble1 M at 20 °C, clear, colorless
氯chloride (Cl-):                       ≤50 ppm
硫酸根sulfate (SO42-):                  ≤50 ppm
  Al:                                   ≤5 ppm
  As:                                   ≤0.1 ppm
  Ba:                                   ≤5 ppm
  Bi:                                   ≤5 ppm
  Ca:                                   ≤10 ppm
  Cd:                                   ≤5 ppm
  Co:                                   ≤5 ppm
  Cr:                                   ≤5 ppm
  Cu:                                   ≤5 ppm
  Fe:                                   ≤5 ppm
  K:                                    ≤50 ppm
  Li:                                   ≤5ppm                                
  Mg:                                   ≤5 ppm
  Mn:                                   ≤5 ppm
  Mo:                                   ≤5 ppm
  Na:                                   ≤50 ppm
  Ni:                                   ≤5 ppm
  Pb:                                   ≤5 ppm
  Sr:                                   ≤5 ppm
  Zn:                                   ≤5 ppm
λ 1 M in H2O
UV absorption
  λ: 260 nm A:                          ≤0.04
  λ: 280 nm A:                          ≤0.045
品级Grade                               分子生物学级                        (grade fmolecular biology )
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥98.0% (GC)
熔点Melting point                       98-100 °C
DNase, RNase, and protease,             none detected 品级Grade                               细胞培养级  
(cellculture tested)
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥98.0% (GC)
熔点Melting point                       98-100 °C
细胞培养试验Cell culture test           PASS
品级Grade                               植物细胞培养级  
 (plancell culture tested)
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥98.0% (GC)
熔点Melting point                       98-100 °C
植物细胞培养试验Plant Cell Culture Test Pass 
贮存 室温保存

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