2,4,5-trichloro-6-hydroxyisophthalonitrile; 2,4,5-Trichloro-6-hydroxy-1,3-benzenedicarbonitrile; 2,4,5-Trichloro-6-hydroxy-isophthalonitrile; 1,3-Dicyano-4-hydroxy-2,5,6-trichlorobenzene; 2,4,5-Trichloro-6-hydroxy-1,3-benzenedicarbonitrile; 2,5,6-Trichloro-4-hydroxy-1,3-benzenedicarbonitrile; 4-Hydroxy-2,5,6-trichloroisophthalonitrile; Hydroxychlorothalonil; SDS 3701; TPN-OH;