4271 O-Toluidine The chemical properties of the toluidines are quite similar to those of aniline and toluidines have properties in common with other aromatic amines. Due to the amino group bonded to the aromatic ring, the toluidines are weakly basic. None of the toluidines is very soluble in pure water, but will become soluble if the aqueous solution is acidic due to formation of ammonium salts, as usual for organic amines. At room temperature and pressure, ortho- and meta-toluidines are viscous liquids, but para-toluidine is a flaky solid. This can be explained by the fact that the p-toluidine molecules are more symmetrical and fit into a crystalline structure more easily. p-Toluidine can be obtained from reduction of p-nitrotoluene. p-Toluidine reacts with formaldehyde to form Troger's base. 95-53-4 7242 C7H9N -16.3°C 16.6 mg/mL at 25°C 1, carcinogenic to humans. (L135) This is a toxic chemical found in cigarettes or generated by tobacco combustion. 2014-08-29T05:53:47Z 2014-12-24T20:26:42Z o-toluidine C14403 66892 true CC1=CC=CC=C1N C7H9N InChI=1S/C7H9N/c1-6-4-2-3-5-7(6)8/h2-5H,8H2,1H3 InChIKey=RNVCVTLRINQCPJ-UHFFFAOYSA-N 107.1531 107.073499293 Exogenous Liquid 1.32 HMDB41965 CHEMBL1381 13854136