3-Acetamidodibenzthiophene oxide 3-Acetylaminodibenzothiophene-5-oxide 4-18-00-07205 (Beilstein Handbook Reference) 63020-21-3 Acetamide, N-3-dibenzothienyl-, 5-oxide BRN 0016835 N-3-Dibenzothienylacetamide 5-oxide