7-chloro-4-hydroxy-2-(4-methoxy-2-methylphenyl)-1,2,5,10-tetrahydropyridazino(4,5-b)quinoline-1,10-dione, sodium salt
7-chloro-4-hydroxy-2-(4-methoxy-2-methylphenyl)-1,2,5,10-tetrahydropyridazino(4,5-b)quinoline-1,10-dione, sodium salt