2(1H)-Pyridinone, 3,5,6-trichloro-4-(propylthio)-, hydrazone 2,3,5-Trichloro-6-hydrazino-4-(propylthio)pyridine 3,5,6-Trichloro-4-(propylthio)-2-pyridone hydrazone 58468-55-6 EINECS 261-265-8