Phenolsulphonic acid, also known as benzenesulfonic acid, is a compound widely used in various industries. It serves as a vital component in the production of detergents, dyes, and pharmaceuticals. Synonyms for phenolsulphonic acid include benzene sulfonic acid, phenylsulfonic acid, and phenylsulfuric acid. These terms are interchangeable and can be used to refer to the same chemical compound. They highlight the presence of a phenyl group attached to a sulfonic acid functional group. Whether it is being used as a catalyst or a raw material, these synonyms facilitate effective communication and understanding in scientific research and chemical processes.