Molecule record

hydroquinone

C6H6O2

110.11 g/mol

2D structure for hydroquinone

Molecular properties

Formula
C6H6O2
Molar mass
110.11 g·mol−1
Exact mass
110.0368 Da
4
2
2
40.50 Ų
0.6 (PubChem computed XLogP3-AA descriptor)
CAS
123-31-9
PubChem CID
785

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
Alkene
Aromatic ring
Phenol

Physical properties

PropertyValueConditionsSource
Logp0.6PubChem computed XLogP3-AA descriptorPubChem(link only)

Common names and synonyms

  • 1,4-Dihydroxybenzene
  • 1,4-benzenediol
  • 123-31-9
  • 4-Hydroxyphenol
  • Arctuvin
  • Benzene-1,4-diol
  • Benzohydroquinone
  • Benzoquinol
Show all 23 synonyms
  • Eldopaque
  • Eldoquin
  • Hidroquinone
  • Hydroquinole
  • Idrochinone
  • Phiaquin
  • Quinol
  • Solaquin forte
  • Tecquinol
  • hydroquinol
  • p-Benzenediol
  • p-Dihydroxybenzene
  • p-Dioxybenzene
  • p-Hydroquinone
  • p-Hydroxyphenol

Structure identifiers

Canonical SMILES
C1=CC(=CC=C1O)O
Isomeric SMILES
C1=CC(=CC=C1O)O
InChI
InChI=1S/C6H6O2/c7-5-1-2-6(8)4-3-5/h1-4,7-8H
InChIKey
QIGBRXMKCJKVMJ-UHFFFAOYSA-N
PubChem CID
785

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)
1645 cm−1C=C alkene (simulated)
3030 cm−1aromatic C-H (simulated)
1600 cm−1aromatic C=C (simulated)
2960 cm−1sp3 C-H (simulated)

Simulated NMR

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

Simulated EI mass spectrum

On-demand educational fragmentation for hydroquinone; 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