Caronamide, i.e. benzylsulfonamide-benzoic acid, was obtained by the condensation of benzylsulfochloride and p-aminobenzoic acid under the presence of alkalis. These materials were all led from toluene and were obtained without much difficulty. The heating in the final condensation was likely to bring about decomposition of the chloride and the reaction was therefore carried out at a room temperature with the alkali as a condensation agent.