Agent Name

Chlorofenvinphos

Alternative Name

Chlorfenvinphos

CAS Number

470-90-6

Formula

C12-H14-Cl3-O4-P

Major Category

Pesticides

Synonyms

Chlorfenvinphos; 2,4-Dichloro-alpha-(chloromethylene)benzyl alcohol diethyl phosphate; 2,4-Dichloro-alpha-(chloromethylene)benzyldiethyl phosphate; 2-Chloro-1-(2,4-dichlorophenyl)-ethenyl diethyl phosphate; 2-Chloro-1-(2,4-dichlorophenyl)vinyl diethyl phosphate; 2-Chloro-1-(2,4-dichlorophenyl)vinyldiethylphosphate; AI3-24969; Apachlor; Benzyl alcohol, 2,4-dichloro-alpha-(chloromethylene)-, diethyl phosphate; Birlan; Birlane; Birlane 10G; C 8949; C8949; C8949; CFV; CGA 26351; CVP; CVP (pesticide); Chlofenvinphos; Chlorfehwinfos [Polish]; Chlorfenvinfos; Chlorfenvinphos; Chlorphenvinfos; Chlorphenvinphos; Clofenvinfos; Clofenvinfoso [INN-Spanish]; Clofenvinfosum [INN-Latin]; Compound 4072; Dermaton; Diethyl 1-(2,4-dichlorophenyl)-2-chlorovinyl phosphate; Diethyl-1-(2,4-dichlorophenyl)-2-chlorovinyl phosphate; Diethyl-2-chloro-1-(2,4-dichlorophenyl)vinyl phosphate; Enolofos; GC 4072; Haptarax; Haptasol; O,O-Diaethyl-O-1-(4,5-dichlorphenyl)-2-chlor-vinyl-phosphat; [German]; O,O-Diethyl O-(2-chloro-1-(2',4'-dichlorophenyl)vinyl) phosphate; O,O-Diethyl-O-1-(2',4'-dichlorophenyl)-2-chlorovinylphosphate; O,O-Dwuetylo-O-1-(2,4-dwuchlorofenylo)-2-chlorowinylofosforan [Polish]; O-2-Chloor-1-(2,4-dichloor-fenyl)-vinyl-O,O-diethylfosfaat; [Dutch]; O-2-Chlor-1-(2,4-dichlor-phenyl)-vinyl-O,O-diaethylphosphat; [German]; O-2-Cloro-1-(2,4-dicloro-fenil)-vinil-O,O-dietilfosfato; [Italian]; OMS 1328; Phosphate de O,O-diethyle et de O-2-chloro-1-(2,4-dichlorophenyl) vinyle [French]; Phosphoric acid, 2-chloro-1-(2,4-dichlorophenyl)ethenyl, diethyl ester; Phosphoric acid, 2-chloro-1-(2,4-dichlorophenyl)vinyl, diethyl ester; SD 4072; SD 7859; Sapecron; Shell 4072; Steladone; Supona; Tarene; Unitox; Vinylphate; Vinyphate; Zaprawa enolofos; beta-2-Chloro-1-(2',4'-dichlorophenyl) vinyl diethylphosphate; [ChemIDplus]

Category

Organophosphate Insecticides

Description

Colorless liquid with a mild odor; [ATSDR PHS]

Sources/Uses

Used to control insect pests on livestock. Used in the past to kill household flies, fleas, and mites. [ATSDR PHS]

Comments

The average of two baseline respective cholinesterase activity determinations three days apart, with no exposures to enzyme inhibiting pesticides for at least 30 days, is recommended for each worker prior to exposure to cholinesterase inhibitors because of large inter-individual differences in published baseline values. To be established at least once a year. Removal from workplace exposures is recommended until the cholinesterase activity returns to within 20% of baseline. [TLVs and BEIs]

Reference Link

ATSDR - Public Health Statement: Chlorfenvinphos

Exposure Assessment
BEI

Acetylcholinesterase activity in red blood cells = 70% of individual's baseline; Butylcholinesterase activity in serum or plasma = 60% of individual's baseline; Sample at end of shift; [TLVs and BEIs]

Vapor Pressure

7.5E-6 mm Hg

Lethal Concentration

LC50 (rat) = 50 mg/m3/4H

Adverse Effects
Other Poison

Organophosphate

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: