The molecule is a sulfonamide in which the nitrogen carries methyl and 2-[4-(ethoxycarbonyl)piperazin-1-yl]-2-oxoethyl substituents and the sulfonyl a 4-chlorophenyl group. It is a sulfonamide and a carbamate ester.
ethyl 4-[2-[(4-chlorophenyl)sulfonyl-methylamino]acetyl]piperazine-1-carboxylate