品名 | 規(guī)格 | 包裝 | 單價 | 貨期 |
鹽酸胍 | 分子生物學(xué)級,99.5% | 25g | 418元 | 現(xiàn)貨 |
鹽酸胍 | 99.5% | 500g | 418元 | 現(xiàn)貨 |
鹽酸胍 | 蛋白變性專用,99.5% | 500g | 1496元 | 現(xiàn)貨 |
鹽酸胍 | 蛋白變性專用,99.5% | 100g | 418元 | 現(xiàn)貨 |
鹽酸胍 | AR | 500g | 217.8元 | 咨詢客服 |
鹽酸胍 | CP | 500g | 107.8元 | 咨詢客服 |
項目 化學(xué)純
(CP)
銨ammonium salt ≤0.1%
含量Assay ≥98.0%
水分Water ≤0.5%
水溶解試驗Solubility(in water) 合格
灼燒殘渣Residue ignition ≤0.2%
品級Grade 蛋白變性專用
(for Protein Research)
外觀Appearance 白色結(jié)晶性粉末
紅外光譜鑒別Infrared spectrometry 和對照匹配
純度Purity ≥99.5% (銀量滴定)
熔點Melting point 185°C - 189°C
蛋白分析測試protein-analysis pass test
蛋白變性試驗Protein denaturation test pass test
不溶物insoluble matter passes filter test
灼燒殘渣ign. residue ≤0.05% (as SO4)
干燥損失loss on drying ≤0.05% , 20 °C (HV)
pH 4.5-6.0 (25 °C, 6 M in H2O)
λ 6 M in H2O (6mol/L, H2O)
紫外吸光度UV absorption
λ: 260 nm A: ≤0.03
λ: 280 nm A: ≤0.02
品級Grade 分子生物學(xué)級
(for molecular biology, ≥99.5% (AT))
外觀Appearance 白色粉末
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity ≥99.5% (銀量滴定)
DNA酶DNases, none detected
RNA酶RNases, none detected
不溶物insoluble matter, passes filter test
磷酸酶phosphatases, none detected
蛋白酶proteases, none detected
灼燒殘渣Residue on ignition ≤0.05% (as SO4)
干燥損失loss on drying ≤0.05%, 20 °C (HV)
pH 4.5-6.0 (25 °C, 6 M in H2O)
熔點Melting point 187°C - 190°C
水溶性solubility H2O: 無色透明
sulfate (SO42-): ≤50 ppm
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 6 M in H2O (6mol/L, H2O)
紫外吸光度UV absorption
λ: 260 nm A: ≤0.03
λ: 280 nm A: ≤0.02
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