Description
TRIS maleate, PUFFERAN® is a high-purity buffer salt with a minimum assay of 99 %, designed for preparing reliable laboratory buffer systems. It is identified by CAS number 72200-76-1 and EG number 276-455-6, with the empirical formula C₈H₁₅NO₇ and a molar mass of 237,21 g/mol. The compound combines the TRIS backbone with maleate counter-ion chemistry, supporting pH control in biochemical, molecular biology and general aqueous buffer applications. Supplied as a 100 g plastic pack, the unit size suits routine buffer preparation and medium-scale laboratory use. PUFFERAN® grade from manufacturer Carl ROTH emphasises consistent quality for buffer-salt workflows where defined composition and purity are essential. Clear listing of CAS, EG number, formula and molar mass simplifies reagent qualification, recipe documentation and transfer between methods. Laboratories can dissolve and adjust TRIS maleate according to their validated protocols while relying on the stated minimum purity and pack presentation for reproducible day-to-day buffer manufacture.
This article is part of Biological buffers (Tris, HEPES, MOPS), in Buffers & pH solutions.
Key features
- Appearance: White crystalline powder
- Assay: ≥99.0 %
- Solubility (10 % in H2O): clear, colorless
- pH- value (0,5 M, in H2O): 3.0-4.5
- Sulphated ash: ≤0.1 %
- Heavy metals (as Pb): ≤0.0005 %
- CAS number: 72200-76-1
- Pack size: 100 g plastic
- EG nr.: 276-455-6
- Purity: min. 99 %
- Molar mass: 237,21 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about TRIS maleate, min. 99 %, PUFFERAN®, 100 g, plastic
What is this article?
TRIS maleate, min. 99 %, PUFFERAN®, 100 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.
