It is used as an analytical reagent, emulsifier and dye intermediate, and is also used in the pharmaceutical industry and the synthesis of insecticides. It is an intermediate of the fungicide Benzotocin and a raw material of n-butyl isocyanate, used in the production of sulfonylurea herbicides. Pharmaceutical intermediates for the production of anti-diabetic drugs; Pesticide intermediates, used in the production of carbamate herbicides and insecticides; Additive intermediate, used for making cracked gasoline anti-adhesive, additive, gasoline antioxidant, rubber inhibitor, siloxane elastomer vulcanizing agent, soap emulsifier; The viscosity of alkyd and urea coatings can be controlled by neutralizing the acidity of color carrier with n-butylamine. N-butylamine fatty acid soap is a flotation agent for non-ferrous metals. N-butylamine is also a developer for color photographs. Continental Oil Company used N-butylamine as a selective solvent for dewaxing and a surface tension inhibitor for crude oil demulsification. Used in medicine, pesticide herbicides, dyes, surfactants, rubber processing AIDS and so on. A special plasticizer for the production of fungicides, pharmaceuticals, adhesives, polyamides, and as an intermediate for rubber accelerators.