# Lysine hydrochloride

CAS: 657-27-2
PubChem CID: 69568
InChIKey: BVHLGVCQOALMSV-JEDNCBNOSA-N
Wikidata: Q27124123
Molecular formula: C₆H₁₅ClN₂O₂
Molar mass: 182.65 g/mol
IUPAC: (2S)-2,6-diaminohexanoic acid;hydrochloride
SMILES: C(CCN)C[C@@H](C(=O)O)N.Cl
InChI: InChI=1S/C6H14N2O2.ClH/c7-4-2-1-3-5(8)6(9)10;/h5H,1-4,7-8H2,(H,9,10);1H/t5-;/m0./s1
PSA: 89.3 A^2
Hydrogen bond donors: 4
Hydrogen bond acceptors: 4
Rotatable bonds: 5
Heavy atoms: 11
3D structure: 26 atoms, 24 bonds

## About the compound

Lysine hydrochloride is a chemical compound registered under CAS number 657-27-2. Molecular formula: C₆H₁₅ClN₂O₂. Molar mass: 182.65 g/mol. The full systematic IUPAC name is: (2S)-2,6-diaminohexanoic acid;hydrochloride. The molecule contains 26 atoms connected by 24 chemical bonds. 
Chemical data comes from the PubChem (NIH), ChEMBL (EBI) and NIST WebBook databases. GHS statement translations comply with the CLP Regulation (EC 1272/2008). Interactive 3D model and 2D skeleton available at: https://molgod.org/molekula/657-27-2/


## Synonyms

  - L-Lysine hydrochloride
  - 657-27-2
  - L-Lysine monohydrochloride
  - lysine hydrochloride
  - L-Lysine, monohydrochloride
  - L-(+)-Lysine Monohydrochloride
  - Lysine hcl, l-
  - JNJ23Q2COM
  - Lysine, l-, monohydrochloride
  - NSC-9253
  - CHEBI:53633
  - Trulysine

## Available in the shop

Shop: MolGod
Product: Pharmaceutical Grade L-Lysine Hydrochloride (CAS 657-27-2) — Xilong Scientific
URL: https://molgod.org/sds-cards/pharmaceutical-grade-l-lysine-hydrochloride-cas-no-657-27-cas-657-27-2-xilong-scientific/

## Data sources

  - PubChem CID 69568: https://pubchem.ncbi.nlm.nih.gov/compound/69568
  - Wikidata: https://www.wikidata.org/wiki/Q27124123
  - NIST WebBook: https://webbook.nist.gov/cgi/cbook.cgi?ID=657-27-2
  - ChEMBL: https://www.ebi.ac.uk/chembl/g/#search_results/all/query=657-27-2

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Last updated: 2026-09-02
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