# Glucosamine Hydrochloride

**CAS:** 66-84-2  
**PubChem CID:** [91431](https://pubchem.ncbi.nlm.nih.gov/compound/91431)  
**Molecular formula:** C₆H₁₄ClNO₅  
**Molar mass:** 215.63 g/mol  
**IUPAC:** (2R,3R,4S,5R)-2-amino-3,4,5,6-tetrahydroxyhexanal;hydrochloride  
**SMILES:** `C([C@H]([C@H]([C@@H]([C@H](C=O)N)O)O)O)O.Cl`  
**InChIKey:** `CBOJBBMQJBVCMW-BTVCFUMJSA-N`  
**InChI:** `InChI=1S/C6H13NO5.ClH/c7-3(1-8)5(11)6(12)4(10)2-9;/h1,3-6,9-12H,2,7H2;1H/t3-,4+,5+,6+;/m0./s1`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| PSA | 124 Ų |
| Hydrogen bond donors | 6 |
| Hydrogen bond acceptors | 6 |
| Rotatable bonds | 5 |
| Heavy atoms | 13 |

## 3D structure

The molecule contains 27 atoms connected by 25 chemical bonds. Interactive 3D model available at: https://molgod.org/molecule/66-84-2/

## Synonyms

- D-Glucosamine hydrochloride
- Glucosamine HCl
- (2R,3R,4S,5R)-2-amino-3,4,5,6-tetrahydroxyhexanal hydrochloride
- Cosamin
- D-Glucose, 2-amino-2-deoxy-, hydrochloride
- Chitosamine hydrochloride
- D-Glucosamine chloride
- 2-Amino-2-deoxy-D-glucose hydrochloride
- Artrox (TN)
- D-Glucosamine monohydrochloride

## Data sources

- [PubChem CID 91431](https://pubchem.ncbi.nlm.nih.gov/compound/91431)
- [Wikidata](https://www.wikidata.org/wiki/Q27266322)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=66-84-2)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=66-84-2)

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*Last updated: 2026-10-17 · Generator: MOL-GOD v3.12.33*