Iodobenzoic acids are any of three organic compounds with the formula IC6H4COOH, consisting of a carboxylic acid group and an iodine atom bonded to a central benzene ring. They can be considered as iodinated derivatives of benzoic acid, or as carboxylated variants of iodobenzene.
| align="center" colspan="4" | Iodobenzoic acid isomers | |||
|---|---|---|---|---|
| Common name and systematic name | 2-Iodobenzoic acid[1] | 3-Iodobenzoic acid[2] | 4-Iodobenzoic acid[3] | |
| Structure | ||||
| Molecular formula | C7H5IO2 (IC6H4COOH) | |||
| Molar mass | 248.018 g/mol | |||
| Appearance | white solid | white solid | white solid | |
| CAS number | [88-67-5] | [618-51-9] | [619-58-9] | |
| align="center" colspan="5" | Properties | |||
| Density and phase | 2.25 g/ml, solid | 2.18 g/ml, solid | ||
| Solubility in water | practically insoluble | |||
| Melting point | 162 °C | 185–187 °C | 270–273 °C | |