4-Acetylamino-toluol-2-sulfonylchlorid, 5-Acetylamino-2-methylbenzenesulfonyl chloride, 4-Acetamino-toluol-sulfonsaeure-(2)-chlorid, 4-Acetamino-toluol-sulfonylchlorid-(2), 5-Acetamido-2-methylbenzenesulphonyl chloride, 4-acetylamino-toluene-2-sulfonyl chloride