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N,N-(2-羟乙基)-2-氨基乙磺酸
BES
CAS号: 10191-18-1
分子式: C6H15NO5S
分子量: 213.20
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
分子结构式:
  货号   品名   产品规格   包装   单价(RMB) 可用库存 备注 数量
129225 N,N-(2-羟乙基)-2-氨基乙磺酸 用于分子生物学, ≥99.5% (T) 25g 86.00 >10 Q-D
129224 N,N-(2-羟乙基)-2-氨基乙磺酸 用于分子生物学, ≥99.5% (T) 100g 326.00 >10 Q-D
129223 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99.5% (T) 25g 92.00 >10 Q-D
129222 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99.5% (T) 100g 352.00 >10 Q-D
129221 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 25g 60.00 >10 Q-D
129220 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 100g 150.00 >10 Q-D
129219 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 500g 626.00 >10 Q-D
性状
质量标准
用途
危险性质
贮存

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

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

生物缓冲剂。

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