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Novabiochem

Novagen

Calbiochem


391333  HEPES, Sodium Salt, ULTROL® Grade

N-2-Hydroxyethylpiperazine-N′-2-ethanesulfonic Acid, Na

A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pKa of 7.55 at 25°C. Absorbance (1.0 mM, H2O, 260 nm):<0.15.
Product number Size Quantity Price
391333-100GM  100 gm  price on request 
391333-1KG  1 kg  price on request 
391333-500GM  500 gm  price on request 
Alternatives
391340 HEPES, Free Acid, Molecular Biology Grade 
391338 HEPES, Free Acid, ULTROL® Grade 
375368 HEPES, Free Acid, ULTROL® Grade, 1 M Solution 
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Accessories for HEPES, Sodium Salt, ULTROL® Grade
Product information
Form White solid
Molar mass 260.3
Hygrocopic Yes
Purity ≥99% by titration (dry basis)
Contaminants chloride: <0.01%; sulfate: <0.05%
Heavy metals <1 ppm
PKA 7.6 at 20°C
Solubility H2O
Chemical formula C8H17N2O4S·Na
CAS number 75277-39-3
Store and ship information
Storage +15°C to +30°C
Ship Ambient Temperature Only
Standard Handling

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