2,3-dichlorobenzothiophene 1-oxide;30834-33-4;2,3-dichloro-1-benzothiophene 1-oxide;InChI=1/C8H4Cl2OS/c9-7-5-3-1-2-4-6(5)12(11)8(7)10/h1-4;2,3-Dichloro-benzo(b)thiophene-1-oxide;2,3-Dichlorobenzothiophene sulfoxide;benzo[b]thiophene, 2,3-dichloro-, 1-oxide