A composition comprising a compound having the following general formula: wherein R1 is (a) an unsubstituted pyrimidinyl, pyridazinyl, or pyrazinyl, or (b) a substituted pyrimidinyl, pyridazinyl or pyrazinyl, wherein each substituted pyrimidinyl, pyridazinyl, or pyrazinyl, has one or more substituents independently selected from (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl,; R2 is H, (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl; R3 is H, (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl; R4 is H, (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl, R5 is NO 2 CN, or CO 2 R 6, wherein R6 = (C 1 -C 3)alkyl; and n is 0, 1, 2, or 3. R1 is (a) an unsubstituted pyrimidinyl, pyridazinyl, or pyrazinyl, or (b) a substituted pyrimidinyl, pyridazinyl or pyrazinyl, wherein each substituted pyrimidinyl, pyridazinyl, or pyrazinyl, has one or more substituents independently selected from (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl,; (a) an unsubstituted pyrimidinyl, pyridazinyl, or pyrazinyl, or (b) a substituted pyrimidinyl, pyridazinyl or pyrazinyl, wherein each substituted pyrimidinyl, pyridazinyl, or pyrazinyl, has one or more substituents independently selected from (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl,; R2 is H, (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl; R3 is H, (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl; R4 is H, (C 2 -C 6)alkenyl, (C 2 -C 6)alkenyloxy, (C 1 -C 6)alkoxy, (C 1 -C 6)alkyl, (C 2 -C 6)alkynyl, (C 2 -C 6)alkynyloxy, aryl, (C 3 -C 6)cycloalkenyl, (C 3 -C 6)cycloalkenyloxy, (C 3 -C 6)cycloalkyl, (C 3 -C 6)cycloalkoxy, halo, or halo(C 1 -C 6)alkyl, R5 is NO 2 CN, or CO 2 R 6, wherein R6 = (C 1 -C 3)alkyl; and n is 0, 1, 2, or 3.