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Molecule record

(E)-3-(4-hydroxyphenyl)prop-2-enoic acid

C9H8O3

164.16 g/mol

Loading structure

Molecular properties

Formula
C9H8O3
Molar mass
164.16 g·mol−1
Exact mass
164.0473 Da
6
PubChem CID
637542

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

  • (2E)-3-(4-hydroxyphenyl)acrylic acid
  • (E)-3-(4-Hydroxyphenyl)-2-propenoic acid
  • (E)-p-Coumaric acid
  • (E)-p-Hydroxycinnamic acid
  • 2-Propenoic acid, 3-(4-hydroxyphenyl)-, (E)-
  • 2-propenoic acid, 3-(4-hydroxyphenyl)-, (2E)-
  • 3-(4-Hydroxyphenyl)-2-propenoic acid
  • 4'-hydroxycinnamic acid
Show all 24 synonyms
  • Cinnamic acid, p-hydroxy-
  • Cinnamic acid, p-hydroxy-, (E)-
  • Hydroxycinnamic acid
  • IBS9D1EU3J
  • NSC-59260
  • NSC-674321
  • Naringeninic acid
  • ORISTAR PCA
  • Para-Coumaric acid
  • beta-(4-Hydroxyphenyl)acrylic acid
  • p-Hydroxyphenylacrylic acid
  • p-coumaric acid
  • trans-4-coumaric acid
  • trans-p-Coumaric acid
  • trans-p-Coumarinic acid
  • trans-p-Hydroxycinnamic acid

Structure identifiers

Canonical SMILES
O=C(O)/C=C/c1ccc(O)cc1
Isomeric SMILES
C1=CC(=CC=C1/C=C/C(=O)O)O
InChI
InChI=1S/C9H8O3/c10-8-4-1-7(2-5-8)3-6-9(11)12/h1-6,10H,(H,11,12)/b6-3+
InChIKey
NGSWKAQJJWESNS-ZZXKWVIFSA-N
PubChem CID
637542

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library
No redistributable or simulated spectroscopy record is attached yet.

Simulated NMR

On-demand educational prediction for (E)-3-(4-hydroxyphenyl)prop-2-enoic acid; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for (E)-3-(4-hydroxyphenyl)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.

PubChem(link only)
Open source record