chlorpyrifos

(redirected from Chlorpyrifos-methyl)
Also found in: Dictionary, Thesaurus, Wikipedia.
A highly toxic crystalline acetylcholinesterase-inhibiting organophosphate insecticide used to control insect pests. It is a neurotoxin and suspected endocrine disruptor, and has been associated with asthma, reproductive and developmental toxicity, and acute toxicity

chlorpyrifos

an organophosphorus insecticide used widely for the control of ectoparasites on animals and in the treatment of their environment.
References in periodicals archive ?
general population is exposed to chlorpyrifos, chlorpyrifos-methyl, their oxons, TCPy, or a combination of these chemicals.
We have presented individual and population-level urinary metabolite data indicating widespread exposure of children to the parent compounds of carbaryl or naphthalene; chlorpyrifos, chlorpyrifos-methyl, or triclopyr; and malathion.
Depending on the chemical structure of the pesticide, various alkylphosphates can be detected (13,17): phosphorodithioates, such as azinphos-methyl, azinphos-ethyl, and dimethoate, give rise to -phosphates (DMP or DEP), -thiophosphates (DMTP or DETP), and -dithiophosphates (DEDTP or DEDTP); phosphorothioates such as chlorpyrifos, chlorpyrifos-methyl, fenitrothion, and omethoate give rise to -phosphates (DMP or DEP) and -thiophosphates (DMTP or DETP); and phosphates such as chlorfenvinphos, dichlorvos, and monocrotophos give rise to -phosphates (DMP or DEP).
TCP is largely specific for chlorpyrifos, although two other less common pesticides, chlorpyrifos-methyl and triclopyr, can also be metabolized to TCP.