niline is one of the most important amines. Mainly used in the manufacture of dyes, drugs, resins, can also be used as rubber vulcanization accelerator. It can also be used as a black dye itself. Its derivative methyl orange can be used as an indicator for acid-base titration.

Aniline is one of the most important intermediates in the dye industry. In the dye industry, aniline can be used to produce acid ink blue G, acid medium BS, acid light yellow, direct orange S, direct pink, indigo, disperse yellow brown, cationic pink FG and reactive brilliant red X-SB. In terms of organic pigments, it is used to produce gold red, gold red G, big red powder, phenol cyanine red, oil-soluble black and so on. Used for aniline black dye in printing and dyeing industry; In the pesticide industry, it is used to produce many insecticides and fungicides such as DDV, weeding ether, toxoachamine, etc. Aniline is an important raw material of rubber auxiliaries, used in the manufacture of aging agent A, aging agent D, aging agent RD and 4010, accelerator M, 808, D and CA, etc. It can also be used as the raw material of medicine sulfanilamide and the intermediate of producing perfume, plastic, varnish, film, etc. It can also be used as stabilizer in explosives, explosion-proof agent in gasoline and solvent. Other can also be used to produce hydroquinone, 2-phenyl indoles, etc.

Aniline is an important raw material for the production of pesticides. From aniline, n-alkyl aniline, o-nitroaniline, cyclohexylamine, etc., can be derived, and can be used as an intermediate of fungicide sodium dirust, seed dressing, insecticide triazophos, pyridazophos, quetiophosphate, herbicide methylamine, cycloazine, imidazolinic acid, etc