Description
TAPSO is a zwitterionic biological buffer offered as PUFFERAN® grade with a minimum purity of 99%, It is identified by CAS number 68399-81-5 and EG number 269-993-8, has the empirical formula C₇H₁₇NO₇S and a molar mass of 259,28 g/mol. Molecular biology and life-science laboratories use TAPSO when preparing buffer systems for biochemical and molecular biological workflows that require stable pH control. The high minimum assay and PUFFERAN® designation indicate a quality level suited to reagent preparation in research settings. Formula and molar-mass values support accurate weighing and reproducible solution make-up. This buffer material from manufacturer Carl ROTH arrives in plastic packaging that is convenient for bench storage and repeated access. Placement among molecular biological buffers and reagents for molecular biology underlines its intended role in life-science protocols. Consistent specification data help laboratories standardise buffer recipes, document lot identity and maintain comparable experimental conditions across analytical and preparative applications that depend on reliable buffering performance.
This article is part of Biological buffers (Tris, HEPES, MOPS), in Buffers & pH solutions.
Key features
- Assay (titr.): ≥99 %
- Loss on drying: ≤1,0 %
- pH value (1 % solution): 4,2-4,7
- 260 nm: ≤0,04
- 280 nm: ≤0,02
- CAS number: 68399-81-5
- Pack sizes: 25 g, 100 g
- EG nr.: 269-993-8
- Empirical formula: C₇H₁₇NO₇S
- Molar mass: 259,28 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about TAPSO, PUFFERAN®, min. 99 %, 25 g, plastic
What is this article?
TAPSO, 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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