3-Bromo-7-hydroxy-4-methylcoumarin is a classic fluorescent coumarin derivative with excellent optical properties and chemical reactivity. It is widely used as fluorescent probe, biochemical labeling reagent and organic synthetic intermediate in scientific research and fine chemical industry. Its stable fluorescent emission and high sensitivity make it ideal for enzyme activity detection, cell imaging, biomolecule tracing and fluorescence quantitative analysis in biological experiments. In organic synthesis field, the active bromine and phenolic hydroxyl groups can participate in substitution, condensation and coupling reactions to synthesize various functionalized coumarin compounds. It is also applied in the research of photosensitive materials, ultraviolet absorbing agents and pharmaceutical raw materials. This product has stable structure, easy modification and good biocompatibility, which is widely used in laboratory scientific research, medical detection reagent development and new functional material preparation, and has great application value in biochemistry and pharmaceutical chemistry fields.

This chemical is classified as mild irritant with low acute toxicity. Inhalation of fine powder may cause slight discomfort and irritation to respiratory tract, so it is necessary to wear dust-proof mask and keep good ventilation during operation. Long-term or frequent skin contact may cause local skin dryness, redness and itching irritation, operators need to wear protective gloves and clean skin with clean water timely after contact. Once it splashes into eyes, it will cause stinging and foreign body sensation, immediately rinse eyes with plenty of running water for more than fifteen minutes and seek medical help if discomfort persists. Accidental ingestion may lead to mild gastrointestinal discomfort such as nausea and bloating, do not induce vomiting and take proper symptomatic treatment. The product will decompose under high temperature to release harmful bromine-containing and carbon oxide gases. It should be stored separately from daily food and living goods. All waste shall be treated in accordance with standard hazardous chemical rules to avoid unnecessary personal injury and environmental pollution risks.