2-Butenoic acid, 2,3-dichloro-4-[2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]hydrazinylidene]-
2-Butenoic acid, 2,3-dichloro-4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]hydrazono]-
2,3-Dichloro-4-[2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]hydrazinylidene]-2-butenoic acid