Description
MES sodium salt, PUFFERAN® is a Good’s-type buffer salt supplied at a minimum purity of 99 % for laboratory buffering applications. With CAS number 71119-23-8, empirical formula C₆H₁₂NaNO₄S, and a molar mass of 217,2 g/mol, this sodium salt of 2-(N-morpholino)ethanesulfonic acid is used to prepare aqueous buffer systems in biochemistry and related experimental work. The PUFFERAN® grade supports formulation of MES-based media and process buffers where a defined salt form and high minimum assay are required. This buffer salt from manufacturer Carl ROTH fits laboratories that need a reliable MES sodium source for biological and analytical workflows. Clear identity data, including EG number 275-203-2, help ensure consistent weighing and dissolution when establishing stock solutions and working buffers across repeated experiments.
This article is part of Biological buffers (Tris, HEPES, MOPS), in Buffers & pH solutions.
Key features
- Assay (titr., dry substance): ≥99 %
- Loss of drying (140 °C, 30 min): ≤1,0 %
- pH value (1 % solution): 8,9-10,1
- CAS number: 71119-23-8
- Pack sizes: 25 g, 100 g
- EG nr.: 275-203-2
- Purity: min. 99 %
- Molar mass: 217,2 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about MES sodium salt, PUFFERAN®, min. 99 %, 25 g, plastic
What is this article?
MES sodium salt, PUFFERAN®, min. 99 %, 25 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Biological buffers (Tris, HEPES, MOPS), inside Buffers & pH solutions, in Lab chemicals.
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 Buffers & pH solutions. The sub-category is Biological buffers (Tris, HEPES, MOPS). The catalogue is Lab chemicals.
Shelves beside this one are pH buffers & conductivity standards and Buffers (other).
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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. 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.
