Molecular properties
- Formula
- C9H8O4
- Molar mass
- 180.16 g·mol−1
- Exact mass
- 180.0422 Da
- 6
- PubChem CID
- 689043
Molecule record
(E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid
C9H8O4
180.16 g/mol
Loading structure
Functional groups
Alkene
Aromatic ring
Carboxylic acid
Phenol
Physical properties
No source-backed physical properties are curated for this molecule yet.
Common names and synonyms
- 2-Propenoic acid, 3-(3,4-dihydroxyphenyl)-
- 2-Propenoic acid, 3-(3,4-dihydroxyphenyl)-, (2E)-
- 3,4-Dihydroxybenzeneacrylic acid
- 3,4-Dihydroxycinnamic acid
- 3-(3,4-Dihydroxyphenyl)-2-propenoic acid
- 3-(3,4-Dihydroxyphenyl)propenoic acid
- 331-39-5
- 4-(2'-Carboxyvinyl)-1,2-dihydroxybenzene
Show all 24 synonyms
- 4-(2-Carboxyethenyl)-1,2-dihydroxybenzene
- CHEBI:16433
- CHEBI:17395
- CHEBI:36281
- Caffeic Acid 1507
- Cinnamic acid, 3,4-dihydroxy-
- DTXCID10231
- DTXSID5020231
- NSC 57197
- NSC-623438
- NSC57197
- NSC623438
- U2S3A33KVM
- caffeic acid
- caffeic acid, (E)-
- trans-3,4-Dihydroxycinnamic Acid
Structure identifiers
- Canonical SMILES
- O=C(O)/C=C/c1ccc(O)c(O)c1
- Isomeric SMILES
- C1=CC(=C(C=C1/C=C/C(=O)O)O)O
- InChI
- InChI=1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/b4-2+
- InChIKey
- QAIPRVGONGVQAS-DUXPYHPUSA-N
- PubChem CID
- 689043
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 (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid; not experimental data.
Simulated EI mass spectrum
On-demand educational fragmentation for (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid; not experimental data.
Sources
Molecule identity
Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.