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HEPES Buffer, 0.5 M solution, pH 8.5

Manufacturer: bioWorld Inc
Shipping: BioWorld Shipping

Synonyms : 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid; N-2-Hydroxyethylpiperazine-N\'-2-ethanesulfonic acid; 2-[4-(2-Hydroxyethyl)-1-piperazine]ethanesulfonic acid


HEPES is one of the best all-purpose buffers available for use in biological research. The molecule is zwitterionic at most biological pHs and is most effective as a buffer at pH 6.8 to 8.2. May be used in isoelectric focusing applications and as a buffer in the quantitative and selective measurement of antigen-antibody reactions. HEPES is reportedly superior to NaHCO3 in controlling pH in tissue and organ culture. Not recommended for use with the Folin-Ciocalteu protein assay.


Technical Information :

Physical Appearance: Colorless liquid

useful pH range : 6.8–8.2

pKa (25°C) : 7.48

Warning: For laboratory use only. Not fit for agricultural, household, clinical use or human consumption.

SizeCatalogue noPrice 
100ml size 40520037-1 £59.00/€82.60
250ml size 40520037-2 £79.00/€110.60
500ml size 40520037-3 £110.00/€154.00
1000ml size 40520037-4 £195.00/€273.00

All prices shown are exlusive of VAT.