Description
N-Acetyl-L-cysteine is an amino acid derivative supplied at min. 98 % purity for biochemistry, with CAS number 616-91-1 and empirical formula C₅H₉NO₃S. The molar mass is 163,20 g/mol and the density is 1,48 g/cm³; flash point is 200,4 °C and the boiling range is 143,9 to 145,3 °C, providing solid physicochemical reference points for laboratory use. This N-acetylated L-cysteine derivative is employed in biochemical research, thiol chemistry, and studies involving cysteine-related pathways or protective group strategies. The grade comes from manufacturer Carl ROTH and is intended for biochemistry applications requiring a defined amino acid derivative. Stated molar mass, density, and thermal data support accurate formulation and protocol documentation. N-Acetyl-L-cysteine is appropriate for amino-acid chemistry, redox-related biochemical work, and broader laboratory workflows that call for a high-purity, well-characterised reagent.
This article is part of Click chemistry, bioconjugation & synthesis reagents, in Biochemicals & reagents.
Key features
- Assay (H-NMR): ≥98 %
- Loss on drying (70 °C, vacuum): ≤2.0 %
- Specific rotation [α]20D (c=5 at pH 7): +21° to +27°
- pH value (c=1 in water): 2.0-2.8
- CAS number: 616-91-1
- Pack sizes: 25 g, 100 g
- EG nr.: 210-498-3
- Purity: min. 98 %
- Molar mass: 163,20 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Click chemistry, bioconjugation & synthesis reagents
Catalogue
Brand
Questions about N-Acetyl-L-cysteine, min. 98 %, for biochemistry, 25 g, glass
What is this article?
N-Acetyl-L-cysteine, min. 98 %, for biochemistry, 25 g, glass 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.