C6H5SO2NH2

C6H5SO2NH2, also known as benzenesulfonamide, is an organic compound with the chemical formula C6H5SO2NH2. It is a white crystalline solid at room temperature. The molecule consists of a phenyl group (C6H5) attached to a sulfonamide group (-SO2NH2). This structure gives benzenesulfonamide its characteristic chemical properties.

Benzenesulfonamide is primarily used as a building block in organic synthesis. It serves as a precursor for the production of various pharmaceuticals, including certain sulfa drugs, which are a class of antibiotics. It is also employed in the synthesis of dyes and other specialty chemicals. The compound can undergo reactions typical of sulfonamides, such as N-alkylation and N-acylation, allowing for the introduction of different functional groups.

Historically, benzenesulfonamide and its derivatives played a significant role in the development of antimicrobial agents. While its direct use as a drug has largely been superseded by more effective and safer alternatives, its chemical framework remains relevant in medicinal chemistry research. Benzenesulfonamide is generally considered to have low acute toxicity, but appropriate handling precautions should be observed, as with any chemical compound. It is soluble in water and many organic solvents.