methoxyaniline noun1 •A colorless crystal, C₇H₉NO, which is used as an intermediate in a wide variety of commercial applications, including the synthesis of dyes, medecines, and perfumes.Limited supply and the high cost of methoxyaniline, and the low yield of vanillin from lignosulfonates […], keeps the cost of vanillin high, and limits its use in the chemical industry. — 1965 formsmethoxyanilines