CAS Registry Number®
52-90-4
CAS Name
L-(+)-Cysteine
Molecular Formula
C3H7NO2S
Molecular Mass
121.16
Compound Properties
-
Melting Point (1)
240 °C (decomp)
-
Density (2)
1.6666 g/cm³ @ Temp: 45.00 °C
Source(s)
- (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)
- (2) Baluja, Shipra; Journal of Pure and Applied Ultrasonics, (2008), 30(3), 81-85, CAplus
Other Names and Identifiers
InChI
InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)
InChIKey
InChIKey=XUJNEKJLAYXESH-UHFFFAOYSA-N
SMILES
C(C(O)=O)(CS)N
Canonical SMILES
O=C(O)C(N)CS
Other Names for this Substance
- L-Cysteine
- Cysteine, L–
- Half-cystine
- β-Mercaptoalanine
- Thioserine
- L-(+)-Cysteine
- Cysteine
- Propanoic acid, 2-amino-3-mercapto-, (R)-
- Cystein
- L-Alanine, 3-mercapto-
- NSC 8746
- (R)-2-Amino-3-mercaptopropanoic acid
- (R)-Cysteine
- 2-Amino-3-mercaptopropionic acid
- L-Cys
- E 920
- (R)-2-Amino-3-mercaptopropanoic acid
- (R)-2-Amino-3-sulfanylpropanoic acid
- (2R)-2-Amino-3-sulfanylpropanoic acid
- 2-Amino-3-mercaptopropanoic acid
- 11: PN: WO2021055880 SEQID: 12 claimed protein
- 518: PN: WO2022056313 SEQID: 534 claimed protein
- 1: PN: WO2022258499 SEQID: 1 claimed sequence
- MeSH ID: D003545
Deleted or Replaced CAS Registry Numbers
4371-52-2, 154605-72-8, 1404190-35-7
