Molecular properties
- Formula
- C6H12N2O4S2
- Molar mass
- 240.31 g·mol−1
- Exact mass
- 240.0238 Da
- 2
- PubChem CID
- 67678
Molecule record
(2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid
C6H12N2O4S2
240.31 g/mol
Loading structure
Functional groups
Alkane / alkyl carbon
Carboxylic acid
Primary amine
Physical properties
No source-backed physical properties are curated for this molecule yet.
Common names and synonyms
- (-)-Cystine
- (R-(R*,R*))-3,3'-Dithiobis(2-aminopropanoic acid)
- 1-Cystine
- 3,3'-Dithiobis(2-aminopropanoic acid)
- 3,3'-Dithiodialanine
- 56-89-3
- Alanine, 3,3'-dithiobis-
- Alanine, 3,3'-dithiodi-
Show all 24 synonyms
- Bis(beta-amino-beta-carboxyethyl)disulfide
- Cysteine disulfide
- Cystin
- Cystine acid
- Cystine, L-
- DTXSID2046418
- Dicysteine
- L-Alanine, 3,3'-dithiobis-
- L-Cysteine disulfide
- L-Dicysteine
- L-alpha-Diamino-beta-dithiolactic acid
- L-cystine
- beta,beta'-Dithioalanine, L-
- beta,beta'-Dithiodialanine
- cistina
- cystine
Structure identifiers
- Canonical SMILES
- N[C@@H](CSSC[C@H](N)C(=O)O)C(=O)O
- Isomeric SMILES
- C([C@@H](C(=O)O)N)SSC[C@@H](C(=O)O)N
- InChI
- InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1
- InChIKey
- LEVWYRKDKASIDU-IMJSIDKUSA-N
- PubChem CID
- 67678
Spectroscopy
Tabs appear only for spectra stored with clear provenance.
No redistributable or simulated spectroscopy record is attached yet.
Simulated NMR
On-demand educational prediction for (2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for (2R)-2-amino-3-[[(2R)-2-amino-2-carboxyethyl]disulfanyl]propanoic acid; not experimental data.
Sources
Molecule identity
Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.