Description
Trimethylolpropane tris(3-mercaptopropionate) is a trifunctional thiol ester reagent It carries CAS number 33007-83-9 and the empirical formula C₁₅H₂₆O₆S₃, with a molar mass of 398,55 g/mol, a density of 1,212 g/cm³, a boiling point of 479,8 °C and a flash point of 403,6 °C. The three mercaptopropionate arms on the trimethylolpropane core make the molecule useful where multi-thiol crosslinking, Michael-type additions or surface-modification chemistry is required. Physical constants support formulation calculations, safety evaluation and process scale-up from laboratory batches. Offered by manufacturer Carl ROTH, quantity provides a practical working stock for polymer research, materials science and synthetic programmes that consume thiol-functional building blocks. Clear specification of molar mass and density aids stoichiometric dosing and density-based volume conversions. This grade is intended for professional laboratory use in controlled environments where a defined polythiol ester is needed as a reactive intermediate or crosslinking component.
This article is part of Biological buffers (Tris, HEPES, MOPS), in Buffers & pH solutions.
Key features
- Colour: colorless
- Form: liquid
- Purity (NMR): ≥90 %
- CAS number: 33007-83-9
- Pack sizes: 500 g, 1 kg, 2 kg, 5 kg
- Empirical formula: C₁₅H₂₆O₆S₃
- Molar mass: 398,55 g/mol
- Density: 1,212 g/cm³
- Flash point: 403,6 °C
- Boiling point: 479,8 °C
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
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Questions about Trimethylolpropane Tris(3-mercaptopropio, nate), 500 g
What is this article?
Trimethylolpropane Tris(3-mercaptopropio, nate), 500 g 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).
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