Description
HEPPS (EPPS) est un sel tampon zwitterionique de Good, fourni en qualité PUFFERAN® avec une pureté minimale de 98 %. Il porte le numéro CAS 16052-06-5, le numéro EG 240-198-8, la formule empirique C₉H₂₀N₂O₄S et une masse molaire de 252.33 g/mol. Ce dérivé d’acide sulfonique organique est largement utilisé pour préparer des systèmes tampons aqueux stables pour des flux de travail biochimiques et des sciences de la vie où un contrôle fiable du pH dans la plage physiologique à légèrement alcaline est requis. Le matériau est HEPPS/EPPS du fabricant Carl ROTH et s’intègre aisément dans les recettes de tampons standard pour le travail sur les protéines, les essais enzymatiques et d’autres applications moléculaires qui bénéficient d’un agent tampon zwitterionique bien caractérisé. Des données d’identité claires (CAS, numéro EG et formule) facilitent la traçabilité et la documentation dans des environnements réglementés ou sous contrôle qualité.
Cet article fait partie de Tampons biologiques (Tris, HEPES, MOPS), dans Tampons & solutions pH.
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Questions about HEPPS, EPPS, PUFFERAN®, min. 98 %, 10 g, plastique
What is this article?
HEPPS, EPPS, PUFFERAN®, min. 98 %, 10 g, plastique is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Tampons biologiques (Tris, HEPES, MOPS), inside Tampons & solutions pH, in Produits chimiques.
Tris, HEPES, MOPS and their relatives hold pH in a range that cells and proteins tolerate, with a pKa near the working pH. The useful range is roughly one unit either side of the pKa. A phosphate buffer and Tris are not interchangeable in a method that names one of them, because the ion itself has effects.
A buffer resists a change in pH when a little acid or base is added. It does that because a weak acid and its conjugate base are both present. A pH buffer used to calibrate a meter has a stated value at a stated temperature. A biological buffer such as Tris or HEPES is chosen because it holds the pH of a living system and does not poison it. Conductivity standards are the sister articles for a conductivity meter. The ions are on PubChem. Electrode calibration practice sits with EURAMET and BELAC.
Which category should I open next?
The category is Tampons & solutions pH. The sub-category is Tampons biologiques (Tris, HEPES, MOPS). The catalogue is Produits chimiques.
Shelves beside this one are tampons pH & étalons de conductivité and Tampons (autres).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

