C.I.73312;PIGMENT RED 88;C.I. Pigment Red 88;Pigment red 88 (C.I. 73312);4,4',7,7'-Tetrachlorothioindigo;Δ2,2'-Bi[4,7-dichlorobenzo[b]thiophene-3(2H)-one];BENZO(B)THIOPHEN-3-ONE,4,7-DICHLORO-2-(4,7-DICHLORO-3-OXO.;4,4',7,7'-Tetrachloro-Δ2,2'(3H,3'H)-bi[benzo[b]thiophene]-3,3'-dione;4,4',7,7'-Tetrachloro-Δ2,2'-bi[2,3-dihydrobenzo[b]thiophene]-3,3'-dione;Benzobthiophen-3(2H)-one, 4,7-dichloro-2-(4,7-dichloro-3-oxobenzobthien-2(3H)-ylidene)-