Sodium pentachlorophenolate131-52-2100 % similar Hexachlorobenzene118-74-140 % similar Sodium 2,4,6-trichlorophenate3784-03-040 % similar Sodium rhodizonate523-21-736 % similar Octachloronaphthalene2234-13-133 % similar Sodium 2,4,5-trichlorophenolate136-32-331 % similar