商品名：TES 三羟甲基氨基甲烷乙磺酸
别 名：2-[（三（羟甲基）甲基）氨基]-1-乙磺酸，三羟甲基氨基甲烷乙磺酸
2-[(2-Hydroxy-1,1-bis(hydroxymethyl)ethyl)amino]ethanesulfonic acid
N-[Tris(hydroxymethyl)methyl]-2-aminoethanesulfonic acid
TES free acid
英文名：TES free acid
产 地：湖南
Cas号：7365-44-8
MDL：MFCD00007532
Beilstein：1957061
EINECS：230-906-3
分子结构：
分子式：C6H15NO6S
分子量：229.2500
备注：
性状：
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useful pH range 6.8 - 8.2
pKa (25 °C) 7.5
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质量标准：99%：
外观Appearance white Crystalline Powder
红外光谱Infrared spectrometry Conforms to Structure
纯度Purity (Titration by NAOH) anhyd. ≥99 %
水溶性Solubility Colorless,Clear,25 g plus 50 ml H2O
水分Water (by Karl Fischer) ≤0.2 %
A290 UV absorbance ≤0.1
(c = 33% w/w)
重金属Heavy Metals (As Lead) ≤5 ppm
品级Grade 超纯级
(Ultra pure,≥ 99.5%（T）)
外观appearance white powder
纯度purity by titration ≥ 99.5%
水溶性solubility clear colorless (1 m in water)
干燥损失loss on drying ≤ 1% (110 °C)
灼烧残渣residue on ignition ≤0.1% (SO4, 900 °C)
不溶物insoluble matter passes filter test
氯chloride (cl) ≤ 0.005%
硫酸根sulfate (so4) ≤ 0.005%
铝aluminum (AL) ≤ 0.0005%
arsenic (As) ≤ 0.0001%
barium (Ba) ≤ 0.0005%
bismuth (Bi) ≤ 0.0005%
calcium (Ba) ≤ 0.001%
cadmium (Cd) ≤ 0.0005%
cobalt (Co) ≤ 0.0005%
chromium (Cr) ≤ 0.0005%
copper (Cu) ≤ 0.0005%
iron (Fe) ≤ 0.0005%
potassium (K) ≤ 0.02%
lithium (Li) ≤ 0.0005%
magnesium (Mg) ≤ 0.0005%
manganese (Mn) ≤ 0.0005%
molybdenum (Mo) ≤ 0.0005%
sodium (Na) ≤ 0.01%
nickel (Ni) ≤ 0.0005%
lead (Pb) ≤ 0.0005%
strontium (Sr) ≤ 0.0005%
zinc (Zn) ≤ 0.0005%
A260 (1 m in water) ≤ 0.055
A280 (1 m in water) ≤ 0.045
pH test 3.5 to 5.0 (1 m in water)
存储：室温
用途：生物研究用Good＇s缓冲液中的成分
联合编号：
RISK：
Safety：
Hazard：