| 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 |
|