5,10-dioxo-5H,10H-diimidazo[1,5-a:1',5'-d]pyrazine-1,6-dicarboxylic acid dichloride, 4H,9H-diimidazo<pyrazine-5,10-dione-1,6-dicarboxylic dichloride, EINECS 261-632-2, 4,9-Dioxo-4,9-dihydrodiimidazo<1,5-a,1',5'-d>pyrazin 1,6-dicarbonyldichlorid, 5,10-dioxo-5H,10H-diimidazo[1,5-a,1',5'-d]pyrazinedicarbonyl-1,6-dichloride, 5,10-dioxo-5H,10H-diimidazo[1,5-a:1',5'-d]pyrazine-1,6-dicarbonyl dichloride