benzoxazolone-6-sulphonyl chloride, 2-Oxo-2,3-dihydro-1,3-benzoxazole-6-sulfonylchloride, 2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonylchloride, 6-Benzoxazolesulfonyl chloride,2,3-dihydro-2-oxo, 6-(chlorosulfonyl)-3-hydrobenzoxazol-2-one, 2,3-Dihydro-2-oxo-1,3-benzoxazole-6-sulphonyl chloride, 2,3-Dihydro-2-oxobenzoxazole-6-sulphonyl chloride, 6-benzoxazolonesulfonyl chloride, 6-chlorosulfonylbenzoxazolin-2-one, 2-oxo-2,3-dihydro-benzoxazole-6-sulfonyl chloride, 2-Oxo-2,3-dihydro-benzooxazole-6-sulfonyl chloride, 2-Oxo-2,3-dihydro-benzoxazol-6-sulfonylchlorid