Description
L-Cysteine hydrochloride is the anhydrous hydrochloride salt of L-cysteine, with empirical formula C₃H₇NO₂S · HCl and CAS number 52-89-1, supplied at a minimum purity of 98 % in p.a. quality. It has a molar mass of 157,62 g/mol and a density of 1,527 g/cm³, supporting precise weighing and solution make-up in analytical and biochemical work. The product is EG number 200-157-7 completes the identity data for catalogues and safety documentation. Available from manufacturer Carl ROTH, this anhydrous grade is suitable for buffer and media preparation, peptide chemistry, redox-related studies and general biochemical applications requiring a defined L-cysteine salt. The plastic container is practical for repeated opening on the bench while protecting the hygroscopic solid. Chemists and life-science users can integrate the material into stock solutions, calibration mixtures and synthetic protocols where p.a. purity and anhydrous specification are specified. Clear molar-mass and density values help ensure reproducible concentrations across experimental series.
This article is part of Amino acids & peptides, in Organic chemicals & synthesis reagents.
Key features
- Assay: ≥98.0 %
- Cd (Cadmium): ≤0.0001 %
- Fe (Iron): ≤0.0015 %
- Hg (Mercury): ≤0.00001 %
- Sulphate (SO4): ≤0.02 %
- Heavy metals (as Pb): ≤0.001 %
- Loss on drying: ≤2.0 %
- CAS number: 52-89-1
- Pack sizes: 10 g, 50 g, 250 g
- EG nr.: 200-157-7
- Purity: min. 98 %, p.a., anhydrous
- Empirical formula: C₃H₇NO₂S · HCl
- Molar mass: 157,62 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about L-Cysteine hydrochloride, min. 98 %, p.a., anhydrous, 10 g, plastic
What is this article?
L-Cysteine hydrochloride, min. 98 %, p.a., anhydrous, 10 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Amino acids & peptides, inside Organic chemicals & synthesis reagents, in Lab chemicals.
An amino acid or a peptide is specified by the sequence or the residue, the chirality, and for a peptide the purity and the salt form. L and D forms are different compounds. A trifluoroacetate salt and a hydrochloride salt weigh differently per mole of peptide.
An organic chemical is built on carbon. In this category it is a building block or a reagent for making another molecule: a starting material, a coupling agent, a polymer, a PEG. Purity is a specification of which impurities remain. The structure, the CAS number and the grade decide whether two bottles are the same substance. Structures and properties are on PubChem. Nomenclature is IUPAC. Classification follows ECHA and the CLP Regulation.
Which category should I open next?
The category is Organic chemicals & synthesis reagents. The sub-category is Amino acids & peptides. The catalogue is Lab chemicals.
Shelves beside this one are Organic building blocks & synthesis reagents, Polymers, PEGs & silicones and Click chemistry, bioconjugation & synthesis reagents.
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