L-(+)-Cysteine
CAS Registry Number®
52-90-4
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CAS Name
L-(+)-CysteineMolecular Formula
C3H7NO2SMolecular Mass
121.16Cite this Page
L-(+)-Cysteine. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. http://commonchemistry.cas.org/detail?ref=52-90-4 (retrieved ) (CAS RN: 52-90-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).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)/t2-/m0/s1
InChIKey
InChIKey=XUJNEKJLAYXESH-REOHCLBHSA-N
SMILES
[C@@H](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
Deleted or Replaced CAS Registry Numbers
4371-52-2, 154605-72-8, 1404190-35-7
