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Novabiochem

Novagen

Calbiochem


391340  HEPES, Free Acid, Molecular Biology Grade

N-2-Hydroxyethylpiperazine-N′-2-ethanesulfonic Acid

A zwitterionice N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pKa of 7.48 at 25°C.
Product number Size Quantity Price
391340-250GM  250 gm  price on request 
391340-25GM  25 gm  price on request 
Alternatives
375368 HEPES, Free Acid, ULTROL® Grade, 1 M Solution 
391333 HEPES, Sodium Salt, ULTROL® Grade 
391338 HEPES, Free Acid, ULTROL® Grade 
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Accessories for HEPES, Free Acid, Molecular Biology Grade
Product information
Form White solid
Molar mass 238.3
Purity ≥99% by alkalimetric assay
Contaminants DNase, RNase, and protease: none detected
Heavy metals ≤0.0005%
PKA 7.55
Solubility Aqueous Basic Solutions or H2O
Chemical formula C8H18N2O4S
RTECS TL6809000
CAS number 7365-45-9
Merck USA index 14, 4654
Store and ship information
Storage +15°C to +30°C
Ship Ambient Temperature Only
Standard Handling

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