品牌 |  |
产品名称 |
2-(环己基氨基)乙磺酸 : CHES ——【产品编号:SIGMA-C8210】
|
CAS编号 | 103-47-9 |
别名 | 2-环己胺基乙磺酸,2-(N-环己氨基)乙磺酸,N-环己基-2-氨基乙磺酸,2-(Cyclohexylamino)ethanesulfonic acid,N-Cyclohexyl-2-aminoethanesulfonic acid,N-Cyclohexyltaurine |
级别 | 生化级 |
纯度&分析 | ≥99.0% (titration),BioXtra |
Tips | 一种常用的生物缓冲剂。 |
分子式 | C8H17NO3S |
分子量 | 207.29 |
储存条件 | 常温避光保存。 |
性质 |
product line |
BioXtra |
assay |
≥99.0% (titration) |
total impurities |
≤0.0005% Phosphorus (P) |
|
≤0.1% Insoluble matter |
ign. residue |
≤0.1% |
pH |
3.0-5.0 (0.5 M in H2O) |
useful pH range |
8.6 - 10.0 |
pKa (25 °C) |
9.3 |
solubility |
H2O: soluble0.5 M, clear, colorless |
anion traces |
chloride (Cl-): ≤0.05% |
|
sulfate (SO42-): ≤0.05% |
cation traces |
Al: ≤0.0005% |
|
Ca: ≤0.001% |
|
Cu: ≤0.0005% |
|
Fe: ≤0.0005% |
|
K: ≤0.005% |
|
Mg: ≤0.0005% |
|
NH4+: ≤0.05% |
|
Na: ≤0.01% |
|
Pb: ≤0.001% |
|
Zn: ≤0.0005% |
abs. |
A0.5M/260, H2O ≤0.08 |
|
A0.5M/280, H2O ≤0.05 |
|
原产地 | 美国 |
描述 |
APPEARANCE |
WHITE POWDER |
SOLUBILITY |
CLEAR COLORLESS SOLUTION (0.5 M,WATER) |
WATER BY KARL FISCHER |
< OR = 1% |
PH TEST |
3.0 TO 5.0 (C = 0.5 M) |
AMMONIA CONTENT |
< OR = 0.05% |
RESIDUE ON IGNITION |
< OR = 0.1% |
CHLORIDE |
< OR = 0.05% |
SULFATE |
< OR = 0.05% |
INSOLUBLE MATTER |
< OR = 0.1% |
ALUMINUM |
< OR = 0.0005% |
CALCIUM |
< OR = 0.001% |
COPPER |
< OR = 0.0005% |
IRON |
< OR = 0.0005% |
LEAD |
< OR = 0.001% |
MAGNESIUM |
< OR = 0.0005% |
PHOSPHORUS |
< OR = 0.0005% |
SODIUM |
< OR = 0.01% |
ZINC |
< OR = 0.0005% |
POTASSIUM |
< OR = 0.005% |
UV ABSORBANCE A260 (0.5 M SOLUTION)A280 |
< OR = 0.08 < OR = 0.05 |
PURITY BY TITRATION |
> OR = 99.0% (ANHYDROUS BASIS) |
|
供货状态 | True |
参考文献 |
K.J. Ellis, J.F. Morrison Meth. Enzymol. 87, 405, (1982)
C. Syvertsen, J.S. McKinley-McKee Eur. J. Biochem. 117, 165, (1981)
Merck 14,2055
|
类型 | 缓冲介质 |
安全信息 |
符号 |
 |
信号词 |
Warning |
危险声明 |
H319 |
警示性声明 |
P305 + P351 + P338 |
个人防护装备 |
dust mask type N95 (US), Eyeshields, Gloves |
危害码 |
Xi |
风险声明 |
36 |
安全声明 |
26 |
WGK德国 |
3 |
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