Imazethapyr81335-77-5100 % similar Imazamox114311-32-978 % similar Imazapic104098-48-873 % similar Imazapyr81334-34-164 % similar Imazaquin81335-37-759 % similar 5-Ethyl-2,3-pyridinedicarboxylic acid102268-15-556 % similar 5-Ethylpicolinic acid770-08-136 % similar 5-Ethylpyridine-2,3-dicarboxylic acid diethyl ester105151-39-135 % similar 5-Methyl-2,3-pyridinedicarboxylic acid53636-65-034 % similar