HEPES (2-[4-(2-Hydroxyethyl)-1-piperazinyl]ethansulfonsäure) ≥99% (Trockenmasse), Pulver, ultrarein

Lieferant: Thermo Scientific

J16926.A1EA 428 EUR
J16926.A1 J16926.22 J16926.A7
HEPES (2-[4-(2-Hydroxyethyl)-1-piperazinyl]ethansulfonsäure) ≥99% (Trockenmasse), Pulver, ultrarein
HEPES (2-[4-(2-Hydroxyethyl)-1-piperazinyl]ethansulfonsäure)
Formel: C₈H₁₈N₂O₄S
Molecular Weight: 238,31 g/mol
Schmelzpunkt: ∼ 236 °C (Zersetzung)
Dichte: 1,448 g/cm³ (20 °C)
Lagertemperatur: Raumtemperatur
MDL: MFCD00006158
CAS-Nummer: 7365-45-9
EINECS: 230-907-9
Merck Index: 14,04654
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Spezifikation Testergebnisse

Assay (Unspecified) ≥99.0% (Dry Basis)
Identification (FTIR) Conforms
pKa (20 °C) 7.55 ±0.15
A (250 nm, 1 M, 1 cm) ≤0.2
Loss on Drying ≤0.5%
Residue on Ignition ≤0.1%
Chloride (Cl) ≤0.005%
Phosphate (PO₄) ≤0.001%
Sulphate (SO₄) ≤0.01%
Iron (Fe) ≤5 ppm
Heavy Metals (Pb) ≤10 ppm
Assay (Unspecified) Absorbance (250 nm, 1 M, 1 cm) ≤0.2

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