Synonyms: Barbituricacid,5-[5,5-dimethyl-3-[2-(2,3,6,7-tetrahydro-1H,5H-benzo[ij]quinolizin-9-yl)vinyl]-2-cyclohexen-1-ylidene]-1,3-diethyl-2-thio-(7CI,8CI); 1H,5H-Benzo[ij]quinolizine, 4,6(1H,5H)-pyrimidinedione deriv.;1,3-Diethyl-5-[5-(2,3,6,7-tetrahydro-1H,5H-benzo[i,j]quinolizin-9-yl)-1,3-neopentylene-2,4-pentadienylidene]-2-thiobarbituricacid; Brooker's dye VII