Description
SDS pellets are a biochemical-grade sodium dodecyl sulfate preparation at min. 99 %, with CAS number 151-21-3 and empirical formula C₁₂H₂₅NaO₄S. The anionic surfactant has a molar mass of 288,38 g/mol, a density of 0,63 g/cm³, a flash point of 170 °C and a boiling point of 216 °C. Typical uses include protein denaturation, lysis buffers, electrophoresis sample preparation and other surfactant-driven steps where a high-purity sodium dodecyl sulfate is specified. Material from manufacturer Carl ROTH supports reproducible preparation of stock solutions and working buffers in research and analytical laboratories. As an anionic surfactant, SDS pellets integrate into performance-material and biochemistry protocols that depend on consistent critical micelle behaviour and solubility. The stated purity and physical data allow laboratories to match catalogue requirements for SDS without extending beyond the manufacturer’s documented specifications.
This article is part of Detergents & surfactants, in Biochemicals & reagents.
Key features
- Appearance: white to almost white pellets
- Assay (GC): ≥99 %
- pH value (1 % in H2O): 7.5-10.5
- Solubility (10 % in H2O): clear, ≤50 Hazen
- 260 nm: ≤1.5
- 280 nm: ≤1.0
- CAS number: 151-21-3
- Pack sizes: 250 g, 500 g, 1 kg, 2.5 kg, 5 kg
- EG nr.: 205-788-1
- Purity: min. 99 %
- Molar mass: 288,38 g/mol
- Density: 0,63 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about SDS Pellets, min. 99 %, for biochemistry, 250 g, plastic
What is this article?
SDS Pellets, min. 99 %, for biochemistry, 250 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Detergents & surfactants, inside Biochemicals & reagents, in Microbiology lab supplies.
A laboratory detergent or surfactant, such as SDS, Tween or Triton, solubilises membranes and stops proteins sticking. The average chain length and the peroxide content matter, especially for a protein that a peroxide would damage. A cleaning detergent for glassware is a different product.
A biochemical is a molecule of life, sold as a reagent: an amino acid, a sugar, a nucleotide, a lipid, an enzyme, an antibiotic. The difference from a bulk chemical is that the use is a biological one, and the impurities that matter are the ones that change that use. An enzyme is specified by activity, not only by mass. An antibiotic is specified by potency. Papers are on PubMed. Structures are on PubChem. Strains and lines that consume these reagents are at ATCC.
Which category should I open next?
The category is Biochemicals & reagents. The sub-category is Detergents & surfactants. The catalogue is Microbiology lab supplies.
Shelves beside this one are Amino acids & peptides, Carbohydrates & sugars, Coenzymes, nucleotides & vitamins, Biochemicals (other), Enzymes & substrates, Antibiotics & antimycotics and Lipids, steroids & fatty acids.
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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.