4-Bromo-1-butanol is a typical bifunctional organic intermediate containing hydroxyl and bromo groups, widely applied in pharmaceutical synthesis, fine chemicals and organic research. The active bromine atom enables nucleophilic substitution reactions, while the hydroxyl group can undergo esterification, oxidation and etherification, supporting the construction of various aliphatic chain skeletons. In pharmaceutical industry, it is a key raw material for synthesizing cardiovascular drugs, neurological agents and antiviral intermediates, and commonly used to prepare cyclic compounds and long-chain alkyl derivatives. In agrochemical production, it acts as a precursor for herbicides, insecticides and plant growth regulators. It is also used to manufacture surfactants, cross-linking agents and polymer additives in material chemistry. In laboratory organic synthesis, it serves as a standard alkylating reagent for introducing four-carbon alkyl chains. Featuring moderate reactivity and good solubility in mixed solvent systems, this compound adapts to both lab-scale experiments and industrial batch production, and is an essential building block in the fine chemical supply chain.

This substance is an irritant and harmful to human body. Vapors and mist may irritate respiratory tract, causing cough, dizziness and throat soreness. Direct skin contact leads to redness, itching and mild chemical irritation, and prolonged exposure may trigger dermatitis. Eye contact will cause stinging, tearing and conjunctival damage. Accidental ingestion may induce nausea, abdominal pain and other gastrointestinal symptoms. All operations shall be conducted in well-ventilated fume hoods. Wear chemical-resistant gloves, safety goggles and protective clothing. Keep away from heat sources, open flames and oxidizing substances. Avoid contact with strong bases to prevent hydrolysis and harmful by-products. Store separately from food and daily necessities. In case of leakage, absorb liquid with inert dry materials and prevent it from flowing into sewer. Rinse contaminated skin with soapy running water for 15 minutes. Flush eyes continuously with clean water after exposure. If swallowed, do not induce vomiting and seek medical treatment in a timely manner. Dispose of waste strictly following local hazardous waste management regulations.