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N,N-(2-羟乙基)-2-氨基乙磺酸
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 N,N-Bis(2-hydroxyethyl)taurine N,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid
Cas号: 10191-18-1 M D L: MFCD00007533
分子式: C6H15NO5S 分子量: 213.20
货号 品名 规格 包装 单价 货期 库存
JD1227144633 N,N-(2-羟乙基)-2-氨基乙磺酸 用于分子生物学, ≥99.5% (T) 100g 196元 咨询客服 3天
JD1227144632 N,N-(2-羟乙基)-2-氨基乙磺酸 用于分子生物学, ≥99.5% (T) 25g 78元 咨询客服 3天
JD1227144631 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99.5% (T) 100g 350元 咨询客服 3天
JD1227144630 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99.5% (T) 25g 92元 咨询客服 3天
JD1227144629 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 500g 628元 现货 3天
JD1227144628 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 100g 148元 现货 1
JD1227144627 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 25g 50元 现货 5
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性状: 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 

贮存: 室温
用途  生物缓冲剂