Phthalic acid (also called 1,2-benzenedicarboxylic acid, o-phthalic acid) has the formula C8H6O4 and a molar mass of 166.13 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 | phthalic acid |
|---|---|
| SMILES | C1=CC=C(C(=C1)C(=O)O)C(=O)O |
| PubChem CID | 1017 |
| Other names | 1,2-benzenedicarboxylic acid, o-phthalic acid, benzene-1,2-dicarboxylic acid, o-dicarboxybenzene, o-benzenedicarboxylic 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.