Agent Name

Carbophenothion

CAS Number

786-19-6

Formula

C11-H16-Cl-O2-P-S3

Major Category

Pesticides

Synonyms

Acarithion; Akarithion; Carbofenothion [Dutch]; Carbofenotion; Carbofenotionum [INN-Latin]; Carbofenthion; Carbophenothion; Dagadip; Dithiophosphate de O,O-diethyle et de (4-chloro-phenyl) thiomethyle [French]; ENT 23,708; Endyl; Ethyl carbophenothion; Garrathion; Hexathion; Karbofenothion [Czech]; Lethox; Nephocarp; O,O-Diaethyl-S-((4-chlor-phenyl-thio)-methyl)dithiophosphat [German]; O,O-Diethyl S-(4-chlorophenylthiomethyl) dithiophosphate; O,O-Diethyl S-(p-chlorophenylthiomethyl) phosphorodithioate; O,O-Diethyl S-p-chlorophenylthiomethyl dithiophosphate; O,O-Diethyl dithiophosphoric acid p-chlorophenylthiomethyl ester; O,O-Diethyl p-chlorophenylmercaptomethyl dithiophosphate; O,O-Diethyl-S-((4-chloor-fenyl-thio)-methyl)-dithiofosfaat [Dutch]; O,O-Diethyl-S-p-chlorfenylthiomethylester kyseliny dithiofosforecne [Czech]; O,O-Dietil-S-((4-cloro-fenil-tio)-metile)-ditiofosfato [Italian]; OMS 244; Oleoakarithion; Phosphorodithioic acid, S-(((4-chlorophenyl)thio)methyl) O,O-diethyl ester; Phosphorodithioic acid, S-(((p-chlorophenyl)thio)methyl) O,O-diethyl ester; R 1303; R-1303; S-(((4-Chlorophenyl)thio)methyl) O,O-diethyl phosphorodithioate (9CI); S-((p-Chlorophenylthio)methyl) O,O-diethyl phosphorodithioate; S-(4-Chlorophenylthiomethyl)diethyl phosphorothiolothionate; Stauffer R-1,303; Trithion; Trithion miticide; [ChemIDplus] UN3018

Category

Organophosphate Insecticides

Description

Colorless or light amber liquid; [HSDB] Slight odor of rotten eggs; [CAMEO] Clear liquid; [MSDSonline]

Sources/Uses

Used as a non-systemic acaricide and insecticide for citrus, deciduous fruits and nuts, and other crops; [HSDB]

Comments

May be absorbed through skin; A cholinesterase inhibitor; [ICSC] In an epidemic involving 19 sugar cane workers, the route of exposure appeared to be inhalation or skin absorption (possibly both); Animal feeding studies showed depression of cholinesterase activity but no gross or microscopic pathology; [HSDB] A highly toxic cholinesterase inhibitor (estimated lethal oral dose of 0.6 g for 70 kg person); [CAMEO] Effects in a three-generation feeding study with rats at 20 ppm include reduced pup weight, increase in stillbirths, and fewer pups alive at weaning; Examination of stillborn pups was negative for teratogenicity; Effects in a 2 year feeding study with rats at the highest dose level (80 ppm) include an increase in adrenal weight; No increase in incidence of neoplasm was observed; [INCHEM JMPR] 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]

Restricted

Cancelled--no longer registered as a pesticide for use in the US; [HSDB]

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

3.0E-7 mm Hg

Explanatory Notes

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

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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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: