Ethoprop

Synonyms

ENT 27,318; Ethoprophos; Jolt; Mobil V-C 9-104; Mocap; O-Ethyl S,S-dipropyl dithiophosphate; O-Ethyl S,S-dipropyl phosphorodithioate (8CI)(9CI); O-Ethyl S,S-dipropylphosphorodithioate; O-Ethyl-S,S-dipropyl phosphorodithionate; Phophos; Phosethoprop; Phosphorodithioic acid, O-ethyl S,S-dipropyl ester; Prophos; Rovokil; V-C 9-104; V-C Chemical V-C 9-104; VC 9-104; Virginia-Carolina VC 9-104; [ChemIDplus] UN3018

Category

Organophosphate Insecticides

Description

Pale yellow liquid; [Merck Index] Colorless to yellow liquid with a strong odor of mercaptans; [Reference #1]

Sources/Uses

Used as non-systemic nematicide and soil insecticide for use on ornamentals, potatoes, fruits, nuts, and other crops; [HSDB]

Comments

Decomposes at room temperature evolving n-Propylmercaptan (flammable); A cholinesterase inhibitor that may have effects on the nervous system causing convulsions and respiratory depression; Can be absorbed through skin and eyes; [ICSC] No significant adverse effects besides cholinesterase inhibition observed in sub-chronic animal feeding studies; [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] See "1-Propanethiol."

Use is restricted due to acute dermal toxicity (formulations containing 10% or greater); [Reference #1]

Reference Link #1

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]

0.00035 mm Hg

LC50 (rat) = 123 mg/m3

Explanatory Notes

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

Reference Link #2

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

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)