3-bromo-2,3-dihydro-4H-thiochromen-4-one 1-oxide 4H-1-benzothiopyran-4-one, 3-bromo-2,3-dihydro-, 1-oxide InChI=1/C9H7BrO2S/c10-7-5-13(12)8-4-2-1-3-6(8)9(7)11/h1-4,7H,5H