3methoxyaniline

3-Methoxyaniline, also known as meta-anisidine, is an aromatic amine in which a methoxy group is attached to the benzene ring at the 3-position relative to the amino group. Its molecular formula is C7H9NO and its molecular weight is approximately 123.15 g/mol. The compound consists of a benzene ring bearing an amino group (–NH2) and a methoxy group (–OCH3).

In terms of physical properties, 3-methoxyaniline is typically described as a colorless to pale yellow liquid with the characteristic odor of primary aromatic amines. It is slightly soluble in water and more soluble in many organic solvents such as ethanol, ether, and dichloromethane. Like other anilines, it can be sensitive to air and may require storage under appropriate conditions to minimize degradation.

Industrial relevance centers on its use as an intermediate in the synthesis of dyes, pigments, and various organic compounds. It is employed in manufacturing processes that involve azo coupling and other substitutions on the aromatic ring, contributing to the production of colorants and related materials. It may also serve as a precursor in pharmaceutical or agrochemical syntheses, depending on the applied route.

Safety and handling are important considerations. 3-Methoxyaniline is classified as a hazardous chemical: it can cause irritation to skin, eyes, and the respiratory tract and may be harmful if inhaled or absorbed through the skin. Some arylamines are associated with methemoglobinemia and potential carcinogenic risks; appropriate controls include working in a fume hood, using personal protective equipment, and proper waste disposal in accordance with regulations.

See also: 2-methoxyaniline (o-anisidine) and 4-methoxyaniline (p-anisidine).