HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid), anhydrous ≥99.5% for biopharmaceutical production

Supplier: VWR Chemicals

30487.366EA 1440 EUR
30487.366 30487.297 30487.468
HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid), anhydrous ≥99.5% for biopharmaceutical production
HEPES (2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulphonic acid)

HEPES

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Specification Test Results

Assay Min. 99.5 %
Appearance White crystalline powder
Cell culture toxicity Passes test
DNases Not detected
Identification by IR Conforms to structure
Proteases Not detected
RNases Not detected
Solubility (1 mol/l) Clear.colourless.complete
pKa (20°C) 7.45 - 7.65
Heavy metals (as Pb) Max. 5 ppm
Ignition residue Max. 0.3 %
Water Max. 0.5 %
Ca (Calcium) Max. 5 ppm
Cu (Copper) Max. 5 ppm
Fe (Iron) Max. 5 ppm
Mg (Magnesium) Max. 5 ppm
Mn (Manganese) Max. 5 ppm
Absorbance (260 nm) (1 mol/l) Max. 0.10
Absorbance (280 nm) (1 mol/l) Max. 0.10
Bioburden Max. 100 CFU/g
Endotoxin (0,2 %) Max. 0.1 EU/mg

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