Dichlofenthion

Synonyms

2,4-Dichloro-phenyl diethyl phosphorothionate; Dichlofenthion [ANSI]; Diethyl 2,4-dichlorophenyl phosphorothionate; ECP; ECP (pesticide); ENT 17470; Hexanema; Mobilawn; Nemacide; Nemacide VC-13; O,O-Diaethyl-O-2,4-dichlor-phenyl-monothiophosphat [German]; O,O-Diaethyl-O-2,4-dichlorphenyl-thionophosphat [German]; O,O-Diethyl O-(2,4-dichlorophenyl) phosphorothioate; O,O-Diethyl O-2,4-dichlorophenyl thiophosphate; O,O-Diethyl-O-(2,4-dichloor-fenyl)-monothiofosfaat [Dutch]; O,O-Dietil-O-(2,4-dicloro-fenil)-monotiofosfato [Italian]; O-2,4-Dichlorophenyl O,O-diethyl phosphorothioate; Phenol, 2,4-dichloro-, O-ester with O,O-diethyl phosphorothioate; Phosphorothioic acid, O-(2,4-dichlorophenyl) O,O-diethyl ester (8CI)(9CI); Thiophosphate de O-2,4-dichlorophenyle et de O,O-diethyle [French]; Tri-VC 13; V-C 13; V-C-13; VC 13; VC13 Nemacide; [ChemIDplus] UN3018

Category

Organophosphate Insecticides

Description

Colorless liquid; [Hawley]

Sources/Uses

Used as pesticide (may be restricted); [Hawley] Used as nematocide and insecticide; [Merck Index]

Comments

A cholinesterase inhibitor; [Merck Index] No significant decrease in cholinesterase activity or toxic symptoms were observed in 90 day feeding study with dogs at 0.75 mg/kg bw; [HSDB] “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]

Biomedical References

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]

0.00056 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Organophosphorus pesticide, liquid, toxic."

Other Poison

Organophosphate

Diseases

Occupational diseases associated with exposure to this agent:

• Organophosphates & carbamates, acute poisoning

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)