14315-13-0 2,3-dihydro-1-benzothiophene 1,1-dioxide InChI=1/C8H8O2S/c9-11(10)6-5-7-3-1-2-4-8(7)11/h1-4H,5-6H benzo[b]thiophene, 2,3-dihydro-, 1,1-dioxide