3,3'-(1,3,6,8-Tetraoxobenzol[lmn][3,8]phenanthroline-2,7(1H,3H,6H,8H)diyl)-di-benzoic acid

3,3'-(1,3,6,8-Tetraoxobenzol[lmn][3,8]phenanthroline-2,7(1H,3H,6H,8H)diyl)-di-benzoic acid · CAS 49546-08-9