Molecule record

arginine

C6H14N4O2

174.20 g/mol

2D structure for arginine

Molecular properties

Formula
C6H14N4O2
Molar mass
174.20 g·mol−1
Exact mass
174.1117 Da
2
4
4
128.00 Ų
-4.2 (PubChem computed XLogP3-AA descriptor)
CAS
74-79-3
PubChem CID
6322

Interactions

Polarity
Often polar; exact polarity depends on size, substitution, and ionization state.
Acid-base behavior
Review ionizable groups and pKa data where available; ChemForge does not infer definitive acid-base state from identity alone.
Intermolecular forces
Assess dispersion, dipole interactions, hydrogen bonding, and ionic character from the functional groups shown.

Functional groups

Alcohol
Amine
Carboxylic acid

Physical properties

PropertyValueConditionsSource
Logp-4.2PubChem computed XLogP3-AA descriptorPubChem(link only)

Common names and synonyms

  • (2S)-2-amino-5-(diaminomethylideneamino)pentanoic acid
  • (2S)-2-amino-5-carbamimidamidopentanoic acid
  • (2S)-2-amino-5-guanidinopentanoic acid
  • (S)-2-Amino-5-((aminoiminomethyl)amino)pentanoic acid
  • (S)-2-Amino-5-guanidinopentanoic acid
  • (S)-2-Amino-5-guanidinovaleric acid
  • 2-amino-5-guanidinovaleric acid
  • 74-79-3
Show all 21 synonyms
  • 94ZLA3W45F
  • ARGININE, L-
  • Arginina
  • Argininum
  • CHEBI:16467
  • DTXCID4021056
  • DTXSID6041056
  • L-(+)-Arginine
  • L-Arg
  • L-Arginin
  • L-alpha-Amino-delta-guanidinovaleric acid
  • L-arginine
  • NSC-206269

Structure identifiers

Canonical SMILES
C(C[C@@H](C(=O)O)N)CN=C(N)N
Isomeric SMILES
C(C[C@@H](C(=O)O)N)CN=C(N)N
InChI
InChI=1S/C6H14N4O2/c7-4(5(11)12)2-1-3-10-6(8)9/h4H,1-3,7H2,(H,11,12)(H4,8,9,10)/t4-/m0/s1
InChIKey
ODKSFYDXXFIFQN-BYPYZUCNSA-N
PubChem CID
6322

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library

Simulated FTIR trace

Predicted FTIR / %T

4 cm-1 resolution / deterministic instrument profile

Hover for cursor
4000350030002500200015001000500100500wavenumber (cm−1)transmittance (%)

Peak assignments

3350 cm−1broad O-H (simulated)
3000 cm−1broad acid O-H (simulated)
1710 cm−1C=O acid (simulated)
2960 cm−1sp3 C-H (simulated)

Simulated NMR

On-demand educational prediction for arginine; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for arginine; not experimental data.

Sources

Molecule identity

Retrieved 8/7/2026. Reuse status is summarized by the badge; open the source for full details.

simulated IR

ChemForge original educational simulation.

Open source record