A chemical commonly found in cleaning products and known for its strong smell is ammonia. Ammonia (NH3) is a colorless gas with a distinctive pungent odor, often associated with household cleaners. It is effective for dissolving grease and removing stains, making it popular in various cleaning products, including glass cleaners and surface disinfectants. Despite its effectiveness, ammonia can be harsh and irritating to the skin and respiratory system, so it should be used with caution and adequate ventilation. Proper dilution and safety precautions are essential when using ammonia-based products.