产品说明
一般描述
Absorbance (1.0 M, H2O, 260 nm):≤0.05.
Absorbance (1.0 M, H2O, 280 nm): ≤0.04
A zwitterionic N-substituted aminosulfonic acid buffer. HEPES has its maximum buffering capacity very near the pH of mammalian tissue fluids (pKa of 7.31 at 37°C). Exhibits no metal binding and has a small temperature dependent ΔpKa of -0.014/°C.
A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pKa of 7.48 at 25°C.
包装
25 g in Plastic ampoule
5 kg in Fibre carton
100, 500 g in Glass bottle
1 kg in Glass bottle
警告
Toxicity: Irritant (B)
重悬
Following reconstitution, store at room temperature (20°C). Stock solutions are stable for up to 6 months at 20°C.
法律信息
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| 经验(实验)分子式 | C8H18N2O4S |
| 分子量 | 238.30 |
| Beilstein | 883043 |
| MDL编号 | MFCD00006158 |
产品性质
| 质量水平 | 100 |
| 测定 | ≥99% dry basis (titration) |
| 形式 | crystalline powder |
| manufacturer/tradename | Calbiochem® |
| 储存条件 | OK to freeze |
| 颜色 | white |
| pKa (25 ℃) | 7.5 |
| 溶解性 | water: 1 M |
| 痕量阴离子 | chloride (Cl-): ≤0.01% sulfate (SO42-): ≤0.05% |
| 痕量阳离子 | Na: ≤0.1% heavy metals: ≤1 ppm |
| 运输 | ambient |
| 储存温度 | 15-25℃ |
| SMILES string | OCCN1CCN(CC1)CCS(O)(=O)=O |
| InChI | 1S/C8H18N2O4S/c11-7-5-9-1-3-10(4-2-9)6-8-15(12,13)14/h11H,1-8H2,(H,12,13,14) |
| InChI key | JKMHFZQWWAIEOD-UHFFFAOYSA-N |
安全信息
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
