Description
S-(Carboxymethyl)-L-cysteine is a sulfur-containing amino acid derivative supplied at a minimum purity of 95 %, with CAS number 638-23-3 and empirical formula C₅H₉NO₄S. The compound has a molar mass of 179,2 g/mol. As a carboxymethylated L-cysteine analogue, it is relevant for studies involving modified amino acids, metabolic pathways and synthetic or analytical biochemistry. Material from manufacturer Carl ROTH offers a clearly specified grade suitable for research formulations, reference preparations and method development where a defined cysteine derivative is required. The solid is handled under standard laboratory practice for amino acid-related biochemicals and supports workflows that need a consistent, documented starting material. Its combination of stated purity, molecular identity and convenient bulk pack size makes it practical for repeated use in organic and biochemical laboratories. Researchers can incorporate this reagent into synthesis, characterization or comparative studies of sulfur-containing amino acid analogues without relying on incompletely specified alternatives.
This article is part of Click chemistry, bioconjugation & synthesis reagents, in Biochemicals & reagents.
Key features
- CAS number: 638-23-3
- Pack sizes: 100 g, 250 g, 500 g, 1 kg, 2 kg
- Purity: min. 95 %
- Empirical formula: C₅H₉NO₄S
- Molar mass: 179,2 g/mol
- Storage temperature: +2 to +8 °C
- Technical Information Sheet:
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Click chemistry, bioconjugation & synthesis reagents
Catalogue
Brand
Questions about S-(Carboxymethyl)-L-cysteine, min. 95 %, 100 g
What is this article?
S-(Carboxymethyl)-L-cysteine, min. 95 %, 100 g is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Click chemistry, bioconjugation & synthesis reagents, inside Biochemicals & reagents, in Microbiology lab supplies.
Click and bioconjugation reagents join two molecules under mild conditions, often an azide to an alkyne, or an NHS ester to an amine. The linker length and the reactive group are the specification. They are small bottles of a reactive compound, and moisture often ruins them.
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 Click chemistry, bioconjugation & synthesis reagents. 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, Lipids, steroids & fatty acids and Detergents & surfactants.
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. Articles in stock ship within 2–5 business days. 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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.