L-Cysteine

cas: 52-90-4 — see every product listed under this CAS number, including other names

L-Cysteine (CAS 52-90-4) is a chemical reagent available from Chemat. Available pack sizes: on request, 100mg, 5kg, 2kg, 10kg, 25kg, 100G, 1KG. Offered by: Chemat Brand, Mikromol, Biosynth, Sigma-Aldrich.

brandChemat Brand
catalog numberAO-A0040.05
cas52-90-4
sizeon request
availability In stock
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Available pack sizes

brand size price
Chemat Brand on request price on request
Mikromol 100mg price on request
Biosynth 5kg price on request
Biosynth 2kg price on request
Biosynth 10kg price on request
Biosynth 25kg price on request
Sigma-Aldrich 100MG 568.90 Pln
Sigma-Aldrich 100G 1115.60 Pln
Sigma-Aldrich 1KG 4508.00 Pln

properties

delivery timeTo be confirmed by Chemat
purityNo data

L-cysteine is an optically active form of cysteine having L-configuration. It has a role as a flour treatment agent, an EC 4.3.1.3 (histidine ammonia-lyase) inhibitor and a human metabolite. It is a cysteine, a L-alpha-amino acid, a serine family amino acid and a proteinogenic amino acid. It is a conjugate base of a L-cysteinium. It is a conjugate acid of a L-cysteinate(1-). It is an enantiomer of a D-cysteine. It is a tautomer of a L-cysteine zwitterion.

Source: ChEBI

Identity
Molecular formulaC3H7NO2S
Molecular weight121.16 g/mol
IUPAC name(2R)-2-amino-3-sulfanylpropanoic acid
InChIKeyXUJNEKJLAYXESH-REOHCLBHSA-N
SMILESC([C@@H](C(=O)O)N)S

Computed by PubChem (NCBI)

Synonyms: L-cysteine, cysteine, Cystein, (R)-2-Amino-3-mercaptopropanoic acid, Thioserine, Half-cystine, L-(+)-Cysteine, beta-Mercaptoalanine, L-Cystein, Cysteinum
Related forms of this compound
(2S)-2-amino-3-sulfanylpropanoic acid C3H7NO2S
2-amino-3-sulfanylpropanoic acid C3H7NO2S
(2S)-2-(15N)azanyl-3-sulfanyl(1,2,3-13C3)propanoic acid C3H7NO2S
(2R)-2-(15N)azanyl-2,3,3-trideuterio-3-sulfanylpropanoic acid C3H7NO2S
(2R)-2-amino-3-sulfanyl(113C)propanoic acid C3H7NO2S
(2R)-2-amino-3-sulfanyl(1,2,3-13C3)propanoic acid C3H7NO2S
(2R)-2-(15N)azanyl-3-sulfanylpropanoic acid C3H7NO2S
2-amino-3,3-dideuterio-3-sulfanylpropanoic acid C3H7NO2S
Isomers (same molecular formula)
1,2-thiazolidine 1,1-dioxide C3H7NO2S
1,1-dioxothietan-3-amine C3H7NO2S
1,3-thiazolidine 1,1-dioxide C3H7NO2S
cyclopropanesulfonamide C3H7NO2S

Also listed as

L-CysteineAcetylcysteine EP Impurity B Chemat Brand CAS 52-90-4
Acetylcysteine EP Impurity B Chemat Brand CAS 52-90-4
L-Cysteine, >95% (HPLC) TRC CAS 52-90-4
L-Cysteine/ 99.58% (existing batch purity) TargetMol CAS 52-90-4
L–Cysteine GLPBio CAS 52-90-4
L-Cysteine, 98+% Thermo Scientific (Alfa Aesar) CAS 52-90-4
L-Cysteine, Cell Culture Reage Thermo Scientific (Alfa Aesar) CAS 52-90-4
L-Cysteine, 99%, non-animal origin, 98.50% Chemat CAS 52-90-4
L-Cysteine, >98.0%(T) TCI CAS 52-90-4
L-Cysteine - non-animal origin Biosynth CAS 52-90-4
L-Cysteine, 98.00% Chemat CAS 52-90-4
H-Cys-OH 97% Ambeed CAS 52-90-4
L-cysteina Chempur CAS 52-90-4
L-CYSTEINE >= 98%, BIOREAG& Sigma-Aldrich CAS 52-90-4
L-CYSTEINE, PRODUCED BY WACKER CHEMIE A& Sigma-Aldrich CAS 52-90-4
L-CYSTEINE BIOULTRA, >= 98& Sigma-Aldrich CAS 52-90-4
L-CYSTEINE, AJINOMOTO& Sigma-Aldrich CAS 52-90-4
L-CYSTEINE, 97% Sigma-Aldrich CAS 52-90-4
L-CYSTEINE, 97% (96% EE/GLC) Sigma-Aldrich CAS 52-90-4
L-Cysteine, 99%, 99% Chemat CAS 52-90-4