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Agent Name Dioxathion
Alternative Name Delnav
CAS Number 78-34-2
Formula C12-H26-O6-P2-S4
Major Category Pesticides
Synonyms 1,4-Diossan-2,3-diil-bis(O,O-dietil-ditiofosfato) [Italian]; 1,4-Diossan-2,3-diyl-bis(O,O-dietil-ditiofosfato) [Italian]; 1,4-Dioxaan-2,3-diyl-bis(O,O-diethyl-dithiofosfaat) [Dutch]; 1,4-Dioxan-2,3-diyl O,O,O',O'-tetraethyl di(phosphorodithioate); 1,4-Dioxan-2,3-diyl S,S-di(O,O-diethyl phosphorodithioate); 1,4-Dioxan-2,3-diyl bis(O,O-diethyl phosphorothiolothionate); 1,4-Dioxan-2,3-diyl bis(O,O-diethylphosphorothiolothionate); 1,4-Dioxan-2,3-diyl-bis(O,O-diaethyl-dithiophosphat) [German]; 2,3-Bis(diethoxyphosphinothioylthio)-1,4-dioxane; 2,3-P-Dioxan-S,S'-bis(O,O-diaethyldithiophosphat) [German]; 2,3-p-Dioxandithiol S,S-bis(O,O-diethyl phosphorodithioate); 2,3-p-Dioxanedithiol S,S-bis(O,O-diethyl phosphorodithioate); AC 528; Bis(dithiophosphate de O,O-diethyle) de S,S'-(1,4-dioxanne-2,3-diyle) [French]; Co-Nav; Delanov; Delnatex; Delnav; Deltic; Dioxane phosphate; Dioxathion; Dioxation; Dioxationum [INN-Latin]; Hercules 528; Hercules AC528; Kavadel; Navadel; Ruphos; S,S'-(1,4-Dioxane-2,3-diyl) O,O,O',O'-tetraethyl bis(phosphorodithioate); S,S'-(1,4-Dioxane-2,3-diyl) O,O,O',O'-tetraethyl di(phosphorodithioate); S,S'-1,4-Dioxane-2,3-diyl bis(O,O-diethyl phosphorodithioate) (9CI); S,S'-p-Dioxane-2,3-diyl bis(O,O-diethyl phosphorodithioate) (8CI); p-Dioxane-2,3-dithiol, S,S-diester with O,O-diethyl phosphorodithioate; p-Dioxane-2,3-diyl ethyl phosphorodithioate; [ChemIDplus] UN3018
Category Organophosphates
Description Viscous, brown, tan, or dark-amber liquid. [insecticide] [Note: Technical product is a mixture of cis- & trans-isomers.]; [NIOSH]
Sources/Uses Insecticide; acaricide; [HSDB]
Comments Inhalation of high concentrations may cause CNS effects; Cholinesterase inhibitor; [ICSC]
Restricted Registration was cancelled in 1994. [HSDB]
Exposure Assessment
BEI Cholinesterase activity in red cells = 70% of individual's baseline, sample time discretionary; [ACGIH]
Skin Designation (ACGIH) Yes
TLV (ACGIH) 0.1 mg/m3, inhalable fraction and vapor
Vapor Pressure 8.76 x 10 -08 mm Hg
Lethal Concentration LC50 (rats) = 1,398 mg/m3/1h
Adverse Effects
Other Poison Organophosphate
Links to Other NLM Databases
Health Studies Human Health Effects from Hazardous Substances Data Bank: DIOXATHION  
Toxicity Information Search TOXNET
Chemical Information Search ChemIDplus
Related Information in Haz-Map
Diseases Occupational diseases associated with exposure to this agent:





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Last updated: September, 2008