Use 1: Used as a chemical reagent.
Use 2: It is used as a pharmaceutical intermediate, and it is also a raw material for the production of dyes.
Use 3: It is used for the preparation of anesthetic procaine hydrochloride and dye intermediates, as well as for the preparation of filters, and also for the production of photosensitive materials, the production of photosensitive materials and the electric paste in capacitors.
Use 4: It is used to synthesize procaine, procaine amide, p-aminobenzoic acid, folic acid, etc. It is also widely used to synthesize pesticides and fuels.
Use 5: Test alkaloids, standardize standard alkali solutions.