Agent Name

Chlormephos

CAS Number

24934-91-6

Formula

C5-H12-Cl-O2-P-S2

Major Category

Pesticides

Synonyms

Chlormefos; Chlormethylfos; Dotan; MC 2188; Phosphorodithioic acid, S-(chloromethyl) O,O-diethyl ester; S-(Chloromethy) O,O-diethyl phosphorodithioate; S-(Chloromethyl) O,O-diethylphosphorodithioate; S-Chloromethyl O,O-diethyl phosphorodithioate; S-Chloromethyl-O,O-diethylphosphorothiolothionate; [ChemIDplus] UN3018

Category

Organophosphate Insecticides

Description

Water-white liquid; [Merck Index] Colorless liquid; [ICSC]

Sources/Uses

Used as insecticide applied to soil; [Merck Index]

Comments

A non-systemic cholinesterase inhibitor; [Merck Index] May be absorbed through skin; A cholinesterase inhibitor; [ICSC]

Restricted

Not registered as a pesticide for use in the US; [CAMEO] Banned in the EU for use as a biocide and agricultural insecticide; [eChemPortal: ESIS]

Exposure Assessment
BEI

Cholinesterase activity in red cells = 70% of individual's baseline, sample time discretionary; [ACGIH]

Lethal Concentration

LC50 (rat) = 88 mg/m3/4h

Explanatory Notes

VP = 0.057 mm Hg at 30 deg C; [Merck Index] The Guide in the Emergency Response Guidebook is for "Organophosphorus pesticide, liquid, toxic."

Adverse Effects
Other Poison

Organophosphate

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: