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  • 果糖
  • CAS编号:57-48-7
  • 中文别名:果糖; 左旋糖; beta-D-果糖
  • 英文名称:D(-)-Fructose
  • 分子式:C6H12O6
  • 分子量:180.1559
  • 0个化合物
货号 名称 规格 包装 单价(元) 优惠(元) 库存 数量 操作
R631843 果糖 分析标准品,HPLC≥99% 100mg ¥ 128.00 ¥ 128.00 >10 -+ 加入购物车
R867614 果糖 99% 100g ¥ 68.00 ¥ 68.00 >10 -+ 加入购物车
R656937 果糖 99% 500g ¥ 118.00 ¥ 118.00 >10 -+ 加入购物车
化学性质

白色斜方棱柱状结晶或结晶性粉末。以呋喃糖型和吡喃糖型同时存在。糖类中味最甜。极易潮解。水中溶解度:3750 G/L (20°C),溶于乙醇、乙醚、吡啶、乙胺和甲胺,易溶于热丙酮,微溶于冷丙酮。
密度:1.6
熔点:103~105℃
比旋光度[α]20D -92 ° (C=10, H2O) 

果糖和葡萄糖互为同分异构体。果糖分子中没有醛基,但酮羰基邻位有羟基存在,其水溶液也能发生银镜反应,也能被新制氢氧化铜氧化,生成氧化亚铜红色沉淀,具有还原性,反应结果分子中碳链断裂。


质量标准
外观Appearance                          白色结晶或结晶粉末
纯度Purity                              98.5%~101.0% 
红外光谱鉴别Infrared spectrometry       和对照品匹配
干燥失重Loss on drying                  <0.5 % (70°C, 4 hrs) (vacuum) 
重金属Heavy metals (as Pb)              <10 ppm 
硫酸盐灰分Sulfated ash                  <0.1 % 
比旋度Specific rotation [a]20/D         -89° ~ -94°(c=10, H2O/NH3) 
氯离子Cl                                < 50 ppm 
硫酸根SO4                               < 50 ppm 
溶解度Appearance of solution            passes test 
其它糖Foreign sugars                    passes test 
5-hydroxymethylfurfural                 passes test 
and related compounds 
 
品级Grade                              美国药典级 
                                       (USP30)
鉴别试验IDENTITY                        PASS 
溶液颜色COLOR OF SOLUTION               PASS 
酸度ACIDITY                             ≤ 0.50 ML 
干燥失重LOSS ON DRYING                  ≤ 0.5% 
灼烧残渣RESIDUE ON IGNITION             ≤ 0.5% 
氯CHLORIDE                              ≤ 0.018% 
硫酸根SULFATE                           ≤ 0.025% 
砷ARSENIC                               ≤ 1 PPM 
钙镁CALCIUM AND MAGNESIUM (AS CALCIUM)  ≤ 0.005% 
重金属HEAVY METALS                      ≤ 5 PPM 
羟基甲基糠醛LIMIT OF HYDROXY- METHYLFURFURAL PASS 
残留溶剂RESIDUAL SOLVENTS               MEETS THE REQUIREMENTS 
含量ASSAY                               98.0% ~ 102.0% (DRY BASIS)
 
 
品级Grade                              欧洲药典级  
                                      (Ph. Eur., BP) 
比旋光度optical activity [α]20/D      −93.5 to −91.0°, c = 10% in H2O 
5-hydroxymethylfurfurol and related substances, 
                                      complies 
acidity or alcalinity,                complies 
foreign sugar,                        complies 
residual solvents,                    complies 
water                                 ≤0.5%  (Karl Fischer) 
ign. residue                          ≤0.1% (as SO4) 
Melting point                         119-122 °C (dec.)
cation traces Ba:,                    in accordance 
  Pb:                                 ≤0.5 ppm
suitability                           in accordance for appearance 
 
 
品级Grade                              细胞培养专用   
                                     (cell culture tested) 
外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       Conforms
纯度Purity                              ≥99.0% (HPLC)  
水溶解试验solubility in water           合格,200mg/4ML 
比旋光度Specific rotation [a]20/D       -87.7°~ -91.3°(C=5, H2O)
葡萄糖Glucose                           ≤ 0.05% (ENZYMATIC ANALYSIS) 
细胞培养cell culture test               PASS
昆虫细胞培养insect cell culture test    PASS


用途及存储

生化和微生物研究用。硼酸的测定。

密封阴凉干燥保存。极易吸潮