Synonyms: 1,3,2-Benzodioxaphosphole,2,2,2-trichloro-2,2-dihydro- (6CI,7CI,8CI,9CI);2,2,2-Trichloro-1,3,2-benzodioxaphosphole;2,2,2-Trichloro-1,3,2l5-benzodioxaphosphole;2,2,2-Trichloro-2,2-dihydro-1,3,2-benzodioxaphosphole;4,5-Benzo-2,2,2-trichloro-1,3-dioxaphospholane;Catecholtrichlorophosphorane;Trichloro(o-phenylenedioxy)phosphine;Trichloro(o-phenylenedioxy)phosphorane;