N-Sulfinylaniline is the organosulfur compound with the formula . It is a straw-colored liquid. N-Sulfinylaniline is an example of a sulfinylamine. It is a dienophile and a ligand in organometallic chemistry.
It is prepared by treating aniline with thionyl chloride:
X-ray crystallographic analysis confirms that N-sulfinylaniline is structurally related to sulfur dioxide as well as sulfur diimide. The CâÂÂS=N=O dihedral angle is âÂÂ1.60ð.