4-Aminobenzoic acid (also called p-aminobenzoic acid, PABA) has the formula C7H7NO2 and a molar mass of 137.14 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 | 4-aminobenzoic acid |
|---|---|
| SMILES | C1=CC(=CC=C1C(=O)O)N |
| PubChem CID | 978 |
| Other names | p-aminobenzoic acid, PABA, Vitamin BX, p-Carboxyaniline, para-aminobenzoic 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.