48647 N,N-(2-羟乙基)-2-氨基乙磺酸 用于分子生物学, ≥99.5% (T) 25g 690
48649 N,N-(2-羟乙基)-2-氨基乙磺酸 用于分子生物学, ≥99.5% (T) 100g 2465
48658 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99.5% (T) 25g 195
48668 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99.5% (T) 100g 692
48672 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 25g 75
48674 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 100g 192
48677 N,N-(2-羟乙基)-2-氨基乙磺酸 ≥99% (T) 500g 692
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℃） A 260 (1M,water): ≤0.095 A 280 (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。