HEPES-2-[4-(2-Hydroxyethyl)-1-piperazinyl]-ethanesulfonic acid ≥99% (dry basis), Powder, ultrapure

Supplier: Thermo Fisher Scientific Chemicals Inc.

Synonyms: 4-(2-Hydroxyethyl)piperazin-1-ylethanesulfonic acidHEPES free acid

J16926-A1 J16926-22 J16926-A7 J16926-30
101170-476EA 428.62 USD InStock
101170-476 101175-052 101173-706 101170-478
HEPES-2-[4-(2-Hydroxyethyl)-1-piperazinyl]-ethanesulfonic acid ≥99% (dry basis), Powder, ultrapure
HEPES (4-(2-Hydroxyethyl)piperazin-1-ylethanesulphonic acid)

White crystalline powder

Formula: C₈H₁₈N₂O₄S
MW: 238.31 g/mol
Melting Pt: 210 to 215 °C
Density: 1.448 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00006158
CAS Number: 7365-45-9
EINECS: 230-907-9
UN: 0000
Merck Index: 14,04654
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Specification Test Results

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%
Sulfate (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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