IUPAC Name: 2-methylaniline

Source: Used in the production of herbicides acetochlor and metolachlor. Also used in dyes and pharmaceuticals.

Summary: One of three isomers of toluidine, o-toluidine is used in the production of popular herbicides acetochlor and metolachlor. It is also used in dyes and pharmaceuticals. It is a light yellow liquid at room temperature and has a density of 0.9984 g/mL at 20 C. It is soluble in water up to 16,600 mg/L at 25 C. It has an acid dissociation constant of pKa = 4.44 at 25 C. The compound is classified by the EPA as a Hazardous Air Pollutant (HAPs). Koc values ranging from 40 – 250 indicate moderate to high mobility within soil. Volatilization from water and soil is expected to be major methods of natural removal.

GHS Hazard Statement: H227, H301, H302, H313, H315, H316, H317, H319, H331, H332, H336, H340, H341, H350, H370, H372, H373, H400, H410, H411, GHS06, GHS07, GHS08, GHS09