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391333 HEPES, Sodium Salt, ULTROL® Grade - CAS 75277-39-3 - Calbiochem

391333
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Overview

Key Spec Table

CAS #Empirical Formula
75277-39-3C₈H₁₇N₂O₄S·Na

Products

Catalogue NumberPackaging Qty/Pack
391333-100GM Glass bottle 100 gm
391333-1KG Glass bottle 1 kg
391333-500GM Glass bottle 500 gm
Description
OverviewA 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):<0.10.
Catalogue Number391333
Brand Family Calbiochem®
SynonymsN-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid, Na
Product Information
CAS number75277-39-3
FormWhite solid
Hill FormulaC₈H₁₇N₂O₄S·Na
Chemical formulaC₈H₁₇N₂O₄S·Na
Hygroscopic Hygroscopic
PKA7.6 at 20°C
Quality LevelMQ100
Biological Information
Purity≥99% by titration (dry basis)
Physicochemical Information
Contaminantschloride: <0.01%; sulfate: <0.05%
Heavy metals<1 ppm
Storage and Shipping Information
Ship Code Ambient Temperature Only
Toxicity Standard Handling
Storage +15°C to +30°C
Hygroscopic Hygroscopic
Do not freeze Ok to freeze
Global Trade Item Number
Catalogue Number GTIN
391333-100GM 07790788054854
391333-1KG 04055977190021
391333-500GM 04055977190069