Phenylsulfinic acid
![Structural formula of phenylsulfinic acid](/Images/godic/202412/24/Phenylsulfinic-acid-2D-skeletal4628.png")
![Ball-and-stick model of the phenylsulfinic acid molecule](/Images/godic/202412/24/Phenylsulfinic-acid-3D-balls4628.png")
Phenylsulfinic acid is an organosulfur compound with the formula C6H5SO2H. It is a colorless or white crystalline solid that is usually stored in the form of its sodium salt. In aqueous solution it is strongly acidic and is easily oxidized in air. Phenylsulfinic acid and its esters are chiral.