1 8LW 2-(1,3,6-trimethyl-2-oxidanylidene-benzimidazol-5-yl)benzo[de]isoquinoline-1,3-dione 1.000 2 7M8 6-(3-oxidanylpropyl)-2-(1,3,6-trimethyl-2-oxidanylidene-benzimidazol-5-yl)benzo[de]isoquinoline-1,3-dione 0.875