Synonym(s): 2-[4-(2-Hydroxyethyl)piperazin-1-yl]ethanesulphonic acid

HEPES free acid Ultrapure (CAS 7365-45-9), also known as 2-[4-(2-Hydroxyethyl)piperazin-1-yl]ethanesulphonic acid, is a high purity reagent tested for use in biotechnology applications, such as electrophoresis, and liquid chromatography. It also commonly used as a biological buffer.

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CAS Number

7365-45-9

Commodity Code

2933599590

MDL Number

MFCD00006158

Purity

>99.5%

Notes

Heavy metals: <1 ppm; pKa @ 20°C: 7.55 +/- 0.2Biological buffer - useful range 6.8 - 8.2