81253-94-3 Benzo(lmn)(3,8)phenanthroline-2,7-dibutanaminium, N,N,N',N'-tetraethyl-1,3,6,8-tetraoxo-, diiodide N,N,N',N'-Tetraethyl-1,3,6,8-tetraoxobenzo(lmn)(3,8)phenanthroline-2,7-dibutanaminium diiodide