13414-95-4 4,5,6,7-Tetrahydro-4-benzothiophenone 4,5,6,7-Tetrahydro-4-oxothionaphthene 4,5,6,7-Tetrahydrothionaphthen-4-one 4-Oxo-4,5,6,7-tetrahydrothianaphthene 4-keto-4,5,6,7-Tetrahydrothianaphthene 6,7-Dihydrobenzo[b]thiophen-4(5H)-one Benzo[b]thiophen-4(5H)-one, 6,7-dihydro- NSC99002