fined one million baht, jailed for 10 years, or both. Manufacture Chlorpyrifos is produced via a multistep synthesis from 3-methylpyridine, eventually reacting 3,5,6-trichloro-2-pyridinol with diethylthiophosphoryl chloride. See also Organophosphate poisoning References External links Chlorpyrifos General Fact Sheet CHLORPYRIFOS – GENERAL FACT SHEET, National Pesticide Information Center (PDF) Chlorpyrifos Technical Fact Sheet (archived version) – National Pesticide Information Center Chlorpyrifos Pesticide Information Profile – Extension Toxicology Network EPA's Chlorpyrifos Page CDC – NIOSH Pocket Guide to Chemical Hazards – Chlorpyrifos Acetylcholinesterase inhibitors Organophosphate insecticides Organothiophosphate esters Chloropyridines Suspected endocrine disruptors Suspected fetotoxicants Ethyl esters