HEPES sodium salt ≥99.0% for molecular biology

Supplier: MP BIOMEDICALS (FKA ICN BIOMED

Synonyms: Sodium 4-(2-hydroxyethyl)piperazin-1-ylethanesulphonate, Sodium 2-(4-(2-hydroxyethyl)piperazin-1-yl)ethanesulphonate, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulphonic acid) sodium salt, 4-(2-Hydroxyethyl)piperazine-1-ethanesulphonic acid sodium salt, HEPES sodium, HEPES Na

0219482825 0219482880 0219482890
IC0219482825EA 87.65 USD
IC0219482825 IC0219482880 IC0219482890
HEPES sodium salt ≥99.0% for molecular biology
HEPES sodium salt

HEPES is a zwitterionic organic chemical buffering agent.


HEPES is widely used in many biochemical reactions and as a buffering agent in some cell culture media. It is used in a protein deposition technique in electron microscopy because it did not affect metal substrates.

Formula: C₈H₁₇N₂NaO₄S
MW: 260.29 g/mol
MDL Number: MFCD00036463
CAS Number: 75277-39-3
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Specification Test Results

Physical Appearance White Powder
pH 9.5 - 10.8 (1% aq soln); Useful pH range=6.8-8.2(Lit)
pKa 7.55 at 25 °C (Lit.)
Loss on Drying <3.0%
Solubility Soluble in water.
Sterilization of Solutions Solutions may be autoclaved under standard conditions

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