HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid) 99+% for molecular biology DNase-, RNase-, protease-free

Supplier: Thermo Scientific

ACRO329855000EA 674 EUR
ACRO329855000 ACRO329850500
HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid) 99+% for molecular biology DNase-, RNase-, protease-free
HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid)
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Specification Test Results

Appearance White Crystalline powder
Infrared spectrum Conforms
Loss on drying ≤0.5 % (105°C)
UV at 260 nm A: ≤0.1
UV at 280 nm A: ≤0.1
UV (0.5 M in water)
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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