122504-22-7 4,8-Ethenopyrrolo(3',4':3,4)cyclobut(1,2-f)isoindole-2,6-diacetic acid, 1,3,3a,3b,4,4a,5,7,7a,8,8a,8b-dodecahydro-alpha,alpha'-bis(2-methylpropyl)-1,3,5,7-tetraoxo- BRN 4832799 Tricyclodecenetetracarboxy-N,N'-bis-(1-carboxy-3-methylbutyl)imide