Description
Cysteine hydrochloride monohydrate is a highly soluble salt form of the amino acid cysteine, offered at a minimum purity of 99 % in the CELLPURE® grade for cell-culture and biochemical applications. It is defined by CAS number 7048-04-6, empirical formula C₃H₇NO₂S · HCl · H₂O and a molar mass of 175,64 g/mol, with EG nr. 200-157-7. The hydrochloride monohydrate improves handling and dissolution compared with the free base, making it practical for media stocks, reducing environments and amino-acid supplementation. This CELLPURE® material from manufacturer Carl ROTH supports work in cell culture, protein chemistry and metabolic research where a reliable cysteine source is required. Clear identity data and the stated minimum assay help laboratories document formulations and maintain reproducible culture conditions. The product fits workflows that need a defined, high-purity cysteine salt for sensitive biological systems.
This article is part of Click chemistry, bioconjugation & synthesis reagents, in Biochemicals & reagents.
Key features
- Endotoxins: ≤24 E.U./g
- Assay: ≥99 %
- Loss on drying: 8,5-12,0 %
- Specific rotation [α]20D: +6,1° to +7,8°
- Ammonium (NH4): ≤0,02 %
- Chloride (Cl): 19,89-20,29 %
- Sulphate (SO4): ≤0,02 %
- Heavy metals (as Pb): ≤0,001 %
- Arsenic (As2O3): ≤0,0001 %
- Iron (Fe): ≤0,001 %
- CAS number: 7048-04-6
- Pack sizes: 25 g, 100 g, 500 g
- EG nr.: 200-157-7
- Purity: min. 99 %
- Molar mass: 175,64 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Cysteine hydrochloride monohydrate, min. 99 %, CELLPURE®, 25 g, plastic
What is this article?
Cysteine hydrochloride monohydrate, min. 99 %, CELLPURE®, 25 g, plastic 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 Life Science & Microbiology.
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.
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The category is Biochemicals & reagents. The sub-category is Click chemistry, bioconjugation & synthesis reagents. The catalogue is Life Science & Microbiology.
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.
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