Metatoluidine

Metatoluidine, also known as 3-methylaniline or m-toluidine, is an organic compound with the chemical formula CH3C6H4NH2. It is one of three isomers of toluidine, the others being ortho-toluidine and para-toluidine. Metatoluidine is a colorless to pale yellow liquid with a characteristic amine odor. It is sparingly soluble in water but miscible with most organic solvents such as ethanol and ether.

Metatoluidine is primarily produced through the reduction of 3-nitrotoluene. This process typically involves catalytic hydrogenation or the use of reducing agents like iron and acid. It is an important intermediate in the synthesis of various chemicals, particularly dyes and pigments. It is used in the production of azo dyes, which are employed in textiles, inks, and paints. Additionally, metatoluidine finds applications in the manufacturing of certain pharmaceuticals and agrochemicals. Its derivatives can also be used as curing agents for epoxy resins.

In terms of safety, metatoluidine is considered a hazardous substance. It is toxic if swallowed, inhaled, or absorbed through the skin. Prolonged or repeated exposure can cause damage to organs. It is also a suspected carcinogen. Proper handling procedures, including the use of personal protective equipment and adequate ventilation, are essential when working with this compound. It is important to consult safety data sheets for detailed information on its properties and safe handling.