3-Chloro-4-fluoroaniline is critical fluorinated chloro aromatic amine intermediate for pharmaceutical and agrochemical manufacture. Amino group on benzene ring can proceed diazotization, acylation and cyclization reactions to construct multiple heterocyclic skeletons. In pesticide industry, it is core starting material for high-efficient herbicides, fungicides and insecticides with fluoro-chloro phenyl structure, improving target pest killing efficiency and reducing crop phytotoxicity. For pharmaceutical field, it is used to synthesize antibacterial, anti-inflammatory and anti-cancer small molecule APIs; fluoro and chloro substituents enhance drug metabolic stability and binding affinity with target protein. Besides bulk synthesis, it serves as key raw material for azo dyestuff and organic pigment production. High purity grade is supplied for custom synthesis factories and drug R&D laboratories globally for new compound screening and pilot production.

GHS Classification:H302,H312,H315,H319,H335 Signal Word:Warning Risk Code:R20/21/22,R36/37/38; Safety Code:S26,S36/37/39 Harmful via oral intake, skin absorption and inhalation. Direct skin absorption leads to poisoning and dermatitis, flush contaminated skin with large amount of running water over 15 min immediately after contact. Solid dust splashing into eyes causes severe irritation and conjunctiva damage, keep continuous eye washing ≥15 min and visit hospital when necessary. Inhalation of dust irritates respiratory tract and triggers dizziness, all operations must be finished in ventilated fume hood with nitrile gloves, splash-proof goggles and organic vapor respirator. Store separately from food, strong oxidants and acidic reagents; waste solid and mother liquor are treated as hazardous chemical waste following local environmental regulation, forbidden random discharge into water and soil.