Chemical Compound

L-cysteine

CAS Registry Number 52-90-4
L-cysteine chemical structure
Primary Record

L-cysteine

In stock
3,519 g
Purity
98.9 %
CAS
52-90-4

Compound Identifiers & Properties

CAS
52-90-4
PubChem CID
5862
SMILES
C([C@@H](C(=O)O)N)S
Canonical SMILES
N[C@@H](CS)C(=O)O

Names & Synonyms

  • L-cysteine
  • cysteine
  • Cystein
  • Thioserine
  • Half-cystine
  • (R)-Cysteine
  • 52-90-4
  • L-(+)-Cysteine
  • Cysteinum
  • cisteina
  • L-Cystein
  • beta-Mercaptoalanine
  • Half cystine
  • Cisteinum
  • Cysteine, L-
  • L-Cys
  • carbocysteine
  • Polycysteine
  • L Cysteine
  • FREE CYSTEINE
  • (R)-2-Amino-3-mercaptopropanoic acid
  • H-Cys-OH
  • Cisteinum [Latin]
  • Cysteine [INN]
  • Cisteina [Spanish]
  • acetylcysteine
  • L-Alanine, 3-mercapto-
  • Dictamnine
  • b-Mercaptoalanine
  • L-Zystein
  • Hythiol
  • Ecolan
  • l-cysteinum
  • Cysteinic acid
  • l-cycteine
  • Half-cysteine
  • racemic cysteine
  • l-cystAine
  • d,l-cysteine
  • Cysteine HCl
  • beta-Mercaptoalanine, L-
  • L-Cysteine Base
  • L-Cysteine High
  • Cysteinum [INN-Latin]
  • L- cysteine
  • 1ssq
  • 2-Amino-3-mercaptopropionic acid
  • 3-Mercaptoalanine
  • Cisteina [INN-Spanish]
  • (2R)-2-amino-3-sulfanylpropanoic acid
  • FEMA No. 3263
  • Cisteinum (Latin)
  • L-cysteinyl radical
  • 3-mercapto-L-Alanine
  • (+)-Cysteine
  • S-Alkyl-L-cysteine
  • Ecolan (TN)
  • S-alkyl-L-cysteines
  • (+)-L-Cysteine
  • (R)-(+)-Cysteine
  • NSC-8746
  • CCRIS 912
  • alpha-Amino-beta-thiolpropionic acid
  • H-Cys-OH.HCl
  • L-2-Amino-3-mercaptopropionic acid
  • L-Cysteine 7403
  • L-Cysteine, 97%
  • C3H7NO2S
  • .beta.-Mercaptoalanine
  • (R)-2-Amino-3-mercaptopropionic acid
  • H-Cys-OH HCl H
  • RefChem:6415
  • 1xt8
  • beta-Mercapto-L-alanine
  • L-2-Amino-3-mercaptopropanoic acid
  • L-Cysteine, food grade
  • CHEMBL863
  • CYSTEINE [HSDB]
  • L-Cysteine (JP18)
  • L-CYSTEINE 1KG
  • CHEBI:17561
  • CYSTEINE [II]
  • CYSTEINE [MI]
  • AC1L1LAT
  • CYSTEINE [VANDF]
  • CYSTEINUM [HPUS]
  • HSDB 2109
  • (2R)-2-amino-3-mercaptopropanoic acid
  • L-CYSTEINE 25GM
  • 2-amino-3-mercaptopropanoate
  • L-Cysteine High 7404
  • CYSTEINE [MART.]
  • L-CYSTEINE [JAN]
  • bmse000034
  • bmse000975
  • CYSTEINE [WHO-DD]
  • D0L4VI
  • Epitope ID:140791
  • Epitope ID:561431
  • L-CYSTEINE [FHFI]
  • Acetylcysteine Impurity 35
  • L-CYSTEINE 100GM
  • L-CYSTEINE 500GM
  • 2-Amino-3-mercaptopropanoic acid
  • AC1Q28DY
  • L-CYSTEINE [VANDF]
  • SCHEMBL3349
  • alpha-Amino-beta-thiolpropionic acid, L-
  • L(+)-Cysteine =98%
  • L-Cysteine, 98% 50g
  • XUJNEKJLAYXESH-REOHCLBHSA-N
  • CYSTEINE HYDROCHLORIDE
  • 2-Amino-3-mercaptopropionate
  • Acetylcysteine EP Impurity B
  • DTXSID8022876
  • H-Cys-OH from animal source
  • UNII-K848JZ4886
  • AI3-26559
  • CHEBI:15356
  • KSC235S5H
  • 2-Amino-3-mercaptopropanoic acid, (R)-
  • 4-Fluoro-2-methoxybenzylamine
  • alpha-Amino-beta-mercaptopropanoic acid, L-
  • EINECS 200-158-2
  • MFCD00064306
  • AC1Q4U93
  • AC1Q4U94
  • DTXCID302876
  • GTPL4782
  • L-Cysteine, >=97%, FG
  • orb1304738
  • orb3025408
  • Propanoic acid, 2-amino-3-mercapto-, (R)-
  • SCHEMBL5555288
  • alpha-Amino-beta-mercaptopropionic acid, L-
  • L-2-Amino-3-mercaptopropanoate
  • L-Cysteine - non-animal origin
  • L-Cysteine hydrochloride hydrate
  • 2-amino-3-mercapto-, (R)-
  • E 920
  • K848JZ4886
  • SCHEMBL10603711
  • (2R)-2-amino-3-mercaptopropanoate
  • (2R)-2-amino-3-sulfanylpropanoate
  • 2-azaniumyl-3-sulfanylpropanoate
  • CHEBI:47915
  • CTK1D5953
  • 2-amino-3-sulfanylpropanoic acid
  • CID5862
  • MSK1405
  • C3-H7-N-O2-S
  • L-Cysteine from non-animal source
  • L-Cysteine hydrochloride anhydrous
  • (2R)-2-amino-3-sulfanyl-propanoic acid
  • AIDS002953
  • E920
  • ZINC895042
  • (C3-H7-N-O2-S)x-
  • (R)-2-Amino-3-mercaptopropanoate
  • 2-Amino-3-sulfhydrylpropanoic acid
  • HY-Y0337
  • KS-00000A9O
  • KS-000048JC
  • NSC 8746
  • STR02584
  • (R)-2-amino-3-mercapto-Propanoate
  • ANW-31581
  • AR-1J3051
  • BDBM50109609
  • c0515
  • EBC-26052
  • L-CYSTEINE (REFERENCE GRADE)
  • MFCD00004881
  • s5635
  • (R)-2-Amino-3-mercaptopropanoicacid
  • E921
  • propanoic acid, 2-amino-3-mercapto-
  • AKOS015854128
  • L-Cysteine 99% for biochemistry 5gm
  • (+)-2-Amino-3-mercaptopropionic acid
  • (2R)-2-azaniumyl-3-sulfanylpropanoate
  • ACN-033104
  • AM81648
  • BAT-008087
  • CCG-266077
  • CS-W009027
  • DB00151
  • FC16020
  • FC76819
  • J9.167G
  • LS-2329
  • RP17845
  • RP17846
  • RTC-066667
  • (2R)-2-Amino-3-mercaptopropionic acid
  • (R)-2-amino-3-mercapto-Propanoic acid
  • (R)-2-Amino-3-sulfanyl-propanoic acid
  • L-Cysteine, 99% - 100G 100g
  • (2R)-2-Amino-3-sulphanylpropanoic acid
  • E-920
  • NCGC00248803-01
  • .alpha.-Amino-.beta.-thiolpropionic acid
  • AJ-24137
  • AN-24407
  • AN-24408
  • BP-14167
  • SC-09426
  • EC 200-158-2
  • L-Cysteine, BioUltra, >=98.5% (RT)
  • M03086
  • [14C] alpha-amino-beta-thiolpropionic acid
  • AB0061707
  • AB1006949
  • DB-297705
  • R-2-AMINO-3-MERCAPTOPROPIONIC ACID
  • ST2419442
  • TC-066667
  • A7132
  • L-Cysteine(Discontinued,See C4X-153235)
  • L-Cysteine, SAJ special grade, >=98.5%
  • L-Cysteine, Vetec(TM) reagent grade, 97%
  • NS00008697
  • EN300-52823
  • A-7785
  • ACETYLCYSTEINE IMPURITY B [EP IMPURITY]
  • C00097
  • D00026
  • Propanoic acid, 2-amino-3-mercapto-, (R)-
  • X-2941
  • 85353-EP2280004A1
  • 85353-EP2280020A1
  • 85353-EP2280021A1
  • 85353-EP2289892A1
  • 85353-EP2305808A1
  • Cys
  • L-Cysteine, Cell Culture Reagent (H-L-Cys-OH)
  • 064C306
  • Q186474
  • (2R)-2-amino-3-sulfanylpropanoic acid hydrochloride
  • A1203792
  • Q-201286
  • (2R)-2-amino-3-mercapto-propionic acid;hydrochloride
  • BBAE7AE6-FC21-4D37-808D-C7F7A2BA637F
  • BRD-K00795468-001-02-1
  • Q27115093
  • 4371-52-2
  • F0001-2369
  • F8880-8973
  • L-Cysteine, certified reference material, TraceCERT(R)
  • Z760035162
  • 202114-66-7
  • 3374-22-9
  • 52-89-1
  • Acetylcysteine EP Impurity B; Cysteine; Glutathione EP Impurity B
  • L-Cysteine; Acetylcysteine Imp. B (EP); Acetylcysteine Impurity B
  • L-Cysteine, produced by Wacker Chemie AG, Burghausen, Germany, >=98.0%
  • L-Cysteine, from non-animal source, BioReagent, suitable for cell culture, >=98%
  • 130633-02-2
  • 200-158-2
  • 201612-57-9
  • 498-40-8
  • 62488-11-3
  • 7048-04-6
  • 7448-02-4
  • 921-01-7
  • FCY