Caffeic acid (also called 3,4-Dihydroxycinnamic acid, 3,4-Dihydroxybenzeneacrylic acid) has the formula C9H8O4 and a molar mass of 180.16 g/mol. The model above is PubChem's computed 3D conformer: drag to rotate, scroll to zoom, and use the measurement tools to read bond lengths and angles.
Explore in 3D Space-filling model PubChem
| IUPAC name | (E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid |
|---|---|
| SMILES | C1=CC(=C(C=C1/C=C/C(=O)O)O)O |
| PubChem CID | 689043 |
| Other names | 3,4-Dihydroxycinnamic acid, 3,4-Dihydroxybenzeneacrylic acid, trans-3,4-Dihydroxycinnamic Acid, Caffeic Acid 1507, cis-Caffeic acid |
Atoms use the standard CPK colors: carbon gray, hydrogen white, oxygen red, nitrogen blue, sulfur yellow. Switch to Spacefill to see the molecule's overall shape and size, or Stick for a clear view of the bonds. Click two atoms in distance mode to measure a bond length in ångströms.
3D coordinates are PubChem's computed conformer, one low-energy shape of the molecule. Flexible molecules can take many other shapes.