Wikipedia:  

4-Hydroxycinnamic acid

Hydroxycinnamic acid; 4-Hydroxycinnamate; 4-Coumarate; p-Hydroxyphenylacrylic acid; Cinnamic acid, p-hydroxy-; P-COUMARIC ACID; beta-(4-Hydroxyphenyl)acrylic acid; 4-Coumaric acid; p-Hydroxycinnamic acid; p-Coumaric acid; 2-Propenoic acid, 3-(4-hydroxyphenyl)-
Molecular Formula
C9 H8 O3
Natural Isotopic Abundance Mass
164.1580200000
Mono-Isotopic Molecular Masses
C12N14:   164.047344123
C13N14:   173.077537663
C12N15:   164.047344123
C13N15:   173.077537663
4-Hydroxycinnamic acid image
4-Hydroxycinnamic acid
InCHi String:
InChI=1S/C9H8O3/c10-8-4-1-7(2-5-8)3-6-9(11)12/h1-6,10H,(H,11,12)/b6-3+

isomeric and canonical SMILES:
C1=CC(=CC=C1C=CC(=O)O)O


IUPAC: IUPAC cas: IUPAC openeye: IUPAC systematic
3-(4-hydroxyphenyl)prop-2-enoic acid

IUPAC traditional
3-(4-hydroxyphenyl)acrylic acid



PubChem Substance (SID):   111677728   166410   4069
PubChem Compound (CID):   322
KEGG: Compound ID   C00811
CAS Registry IDs:   7400-08-0
PDB Chemical Component   HC4
Miscellaneous Databases and IDs:   CHEBI 32374   EINECS 231-000-0   Beilstein Handbook Reference 4-10-00-01005   NSC 59260

Reference data were obtained primarily from the PubChem database.

Three dimensional molecular rendering uses Jmol.