3-Amino-2-naphthoic acid is an important naphthalene-series bifunctional organic intermediate with amino and carboxyl groups on naphthalene ring, owning excellent chemical reactivity and derivatization performance. It is widely applied in fine chemical synthesis, pharmaceutical research and dye industry. In pharmaceutical field, it serves as core building block to synthesize anti-inflammatory agents, analgesics and nervous system related therapeutic drugs, and participates in cyclization, acylation and condensation reactions to construct complex pharmaceutical molecular skeletons. In dye and pigment industry, it is used for manufacturing high-grade azo dyes, fluorescent dyes and organic colorants with stable color fastness. Besides, it can be used to prepare chemical analytical reagents and organic functional materials. Its stable molecular structure and easy modification feature make it widely used in laboratory research and industrial mass production, playing an indispensable role in the production of high-end fine chemicals and medical intermediates.

This chemical is a common irritant substance with certain operational health hazards. Inhalation of fine dust will irritate nasal cavity and respiratory tract, cause sore throat, cough and breathing discomfort, so staff must wear dust-proof masks and keep working area fully ventilated during operation. Direct skin contact may lead to local skin redness, itching and mild allergic irritation, operators need to wear chemical resistant gloves and wash contact skin with running water timely after work. Once powder splashes into eyes accidentally, it will cause obvious stinging pain and conjunctival inflammation, immediately rinse eyes with plenty of clean flowing water for more than fifteen minutes and seek professional medical treatment promptly. Accidental oral intake will trigger nausea, stomachache and other gastrointestinal discomforts, do not induce vomiting blindly and take proper relief measures. The product will decompose under high temperature to release toxic nitrogen oxide fumes. Keep it stored far away from food, daily necessities and incompatible chemicals. All waste materials shall be disposed strictly in accordance with hazardous waste treatment regulations to prevent personal injury and environmental pollution.