• N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1]

  • 英文名:BES
  • 别名:N,N-双(2-羟乙基)-2-氨基乙磺酸,N,N-二(2-羟乙基)-2-氨基乙磺酸,2-(二乙醇氨基)乙磺酸
  • CAS号:10191-18-1 分子式:C6H15NO5S 分子量:213.20
P154917-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 500g 871.00 促销价:635.83
P154919-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 100g 314.00 促销价:229.22
P154913-2.5kg N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 2.5kg 3285.00 促销价:2398.05
P154917-500g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 500g 692.00 促销价:505.16
P154914-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 100g 214.00 促销价:156.22
P154912-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 1kg 1214.00 促销价:886.22
P154918-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99.5% (T) 500g 1214.00 促销价:886.22
P154918-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99.5% (T) 100g 385.00 促销价:281.05
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
P154917-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 500g 871.00 635.83 登录可见
P154917-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 500g 871.00 促销价:635.83
P154919-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 100g 314.00 229.22 登录可见
P154919-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 100g 314.00 促销价:229.22
P154913-2.5kg N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 2.5kg 3285.00 2398.05 登录可见
P154913-2.5kg N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] 99%生物技术级 2.5kg 3285.00 促销价:2398.05
P154917-500g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 500g 692.00 505.16 登录可见
P154917-500g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 500g 692.00 促销价:505.16
P154914-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 100g 214.00 156.22 登录可见
P154914-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 100g 214.00 促销价:156.22
P154912-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 1kg 1214.00 886.22 登录可见
P154912-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99% (T) 1kg 1214.00 促销价:886.22
P154918-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99.5% (T) 500g 1214.00 886.22 登录可见
P154918-25g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99.5% (T) 500g 1214.00 促销价:886.22
P154918-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99.5% (T) 100g 385.00 281.05 登录可见
P154918-100g N,N-(2-羟乙基)-2-氨基乙磺酸 [10191-18-1] ≥99.5% (T) 100g 385.00 促销价:281.05
  •  订货编号
  •  商品名称
  •  规格
  •  包装
  •  单价
  •  促销价
  •  会员价
  •  数量

化学性质

白色结晶粉末。 熔点:152-154℃ useful pH range 6.4 - 7.8 pKa (25 °C) 7.1

质量标准

  

99%:

纯度assay                             ≥99.0%(T)
水分Moistrue                          ≤0.5%
氯Chloride                            ≤0.05%
重金属Heavy Metals (as Pb)           <5PPM
灼烧残渣Residue On Ignition           ≤0.1%
pH(1%;H2O)                            4.1-4.5(20℃)
A260(1M,water):                       ≤0.095
A280(1M,water):                       ≤0.080


99.5%:


含量assay                              ≥99.5% (T)
灼烧残渣Residue on ignition(900 °C)   ≤0.05%
pH                                    2.5-5.0 (25 °C, 1 M in H2O)
useful pH range                       6.4 - 7.8
pKa (25 °C)                          7.1
水溶性solubility H2O:                 soluble1 M at 20 °C, clear, colorless
氯(Cl-):                              ≤50 ppm
硫酸根sulfate (SO42-):                ≤100 ppm
cation traces by ICP Atomic emission
  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:                                 ≤5 ppm
  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:                       ≤0.095
  λ: 280 nm A:                       ≤0.080



品级Grade                              分子生物学级  
                                (for molecular biology, ≥99.5% (T))
含量assay                              ≥99.5% (T)
DNA酶DNases,                           none detected
RND酶RNases,                           none detected
不溶物insoluble matter,                passes filter test
磷酸酶phosphatases,                    none detected
蛋白酶proteases,                       none detected
灼烧残渣Residue on ignition(900 °C)   ≤0.05%
pH                                    2.5-5.0 (25 °C, 1 M in H2O)
useful pH range                       6.4 - 7.8
pKa (25 °C)                          7.1
水溶性solubility H2O:                 soluble1 M at 20 °C, clear, colorless
氯(Cl-):                              ≤50 ppm
硫酸根sulfate (SO42-):                ≤100 ppm
cation traces by ICP Atomic emission
  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:                                 ≤5 ppm
  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:                       ≤0.095
  λ: 280 nm A:                       ≤0.080

  

危险性质

  

用途及存储

生物缓冲剂。

  密封干燥保存。