HEPES, wasserfrei ≥99,5% für die biopharmazeutische Produktion

Lieferant: VWR Chemicals

30487.297EA 400 CHF
30487.297 30487.366 30487.468
HEPES, wasserfrei ≥99,5% für die biopharmazeutische Produktion
HEPES (2-[4-(2-Hydroxyethyl)-1-piperazinyl]ethansulfonsäure)

HEPES

Formel: C₈H₁₈N₂O₄S
Melting Pt: 210…215 °C
Dichte: 1.448 g/cm³ (20 °C)
Lager Temperatur: Raumtemperatur
MDL Number: MFCD00006158
CAS-Nummer: 7365-45-9
EINECS: 230-907-9
Merck Index: 13,04672
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Spezifikation Testergebnisse

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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