HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid) 99+% for molecular biology DNase-, RNase-, protease-free
: HEPES free acid, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulphonic acid), 4-(2-Hydroxyethyl)piperazin-1-ylethanesulphonic acid, N-2-Hydroxyethylpiperazine-N′-2-ethanesulphonic acid, 2-(4-(2-Hydroxyethyl)piperazin-1-yl)ethanesulphonic acid
:7365-45-9
:
:C₈H₁₈N₂O₄S
:MFCD00006158
:13,04672
:209…215 °C (dec.)
:1,448 g/cm³ (20 °C)
:238.31 g/mol
:Ambient
:230-907-9
- Environmentally Preferable:
- Appearance:White Crystalline powder
- Infrared spectrum:Conforms
- Loss on drying:≤0.5 % (105°C)
- UV:at 260 nm A: ≤0.1
- pH:5 to 6.5 (0.5 M in water)
- Titration with NaOH:≥99.0 % (On dry substance)
- Dnase,Rnase,Protease activity:none detected
- Sulfate (SO4):≤500 ppm
- Iron (Fe):≤5 ppm
- Potassium (K):≤1000 ppm
- Heavy metals (as Pb):≤10 ppm
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