Methyl 2,5,6-trichloro-4-pyrimidinecarboxylate, also known as CD-0064, 4-Pyrimidinecarboxylicacid, 2,5,6-trichloro-, methyl ester, under the IUPAC name methyl 2,5,6-trichloropyrimidine-4-carboxylate, is the derive of pyridine that can be used as herbicide.