6,6''-Methylenebis[1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one] is an intermediate in the synthesis of 6,6’-Methylenebis[(3RS)-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-1,2,3,9-tetrahydro-4H-carbazol-4-one (M303950), which is an Ondansetron impurity.
