4-Bromo-2-nitrotoluene is a core aromatic fine chemical intermediate widely used in pharmaceutical, pesticide and dyestuff synthesis industries. Its nitro and bromo substituents are active reaction sites for subsequent reduction, coupling and cyclization reactions. In pharma synthesis, it is key raw material for preparing anti-inflammatory, antibacterial and central nervous system medicines via nitro reduction into amino group and bromine substitution. For agrochemical field, it is applied to manufacture high-efficiency herbicides and fungicides by derivatization of aromatic amine intermediates after reduction. Dye industry uses it to synthesize azo disperse dyes and acid dyes for textile coloration. In organic lab research, it serves as standard substrate for cross-coupling reactions like Suzuki, Buchwald-Hartwig coupling experiment teaching and new catalyst screening. Fine chemical factories also adopt it to produce aromatic amine intermediates for rubber auxiliary and photosensitive material production, most bulk cargo is packed in 25kg woven plastic bag for global intermediate buyers.

GHS:H315,H319,H335,H302;Signal Word:Warning Harmful by oral intake, irritant to skin, eyes and respiratory tract. Direct skin contact causes redness and itching, wash contaminated skin with plenty of flowing clean water for minimum 15 minutes. Crystal dust splashing into eyes triggers severe irritation and lacrimation, continuously rinse eye with running water over 15 min and consult doctor if discomfort persists. Long-term dust inhalation irritates nasal mucosa and induces cough; full operation needs fume hood, nitrile gloves, safety goggles and dust respirator. Do not discharge waste liquid directly into rivers or soil for its moderate aquatic toxicity. Store separately from food, strong reductant and inorganic strong base to prevent violent chemical reaction. Waste residues belong to hazardous chemical waste and must be disposed by qualified professional waste treatment institution complying with local environmental protection laws.