| Agent Name |
Coumaphos |
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| CAS Number |
56-72-4 |
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| Formula |
C14-H16-Cl-O5-P-S |
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| Major Category |
Pesticides |
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| Synonyms |
3-Chloro-4-methyl-7-coumarinyl diethyl phosphorothioate; 3-Chloro-4-methyl-7-hydroxycoumarin diethyl thiophosphoric acid ester; 3-Chloro-4-methylumbelliferone O-ester with O,O-diethyl phosphorothioate; 3-Chloro-7-diethoxyphosphinothioyloxy-4-methylcoumarin; 3-Chloro-7-hydroxy-4-methyl-coumarin O,O-diethyl phosphorothioate; 3-Chloro-7-hydroxy-4-methyl-coumarin O-ester with O,O-diethyl phosphorothioate; Agridip; Asunthol; Asuntol; Azunthol; Baymix; Baymix 50; CO-Ral; Coumafos; Coumafosum [INN-Latin]; Coumaphos; Coumaphos [ISO]; Coumarin, 3-chloro-7-hydroxy-4-methyl-, O-ester with O,O-diethyl phosphorothioate; Cumafos [Dutch]; Cumafos [INN-Spanish]; Cumafosum; Diethyl 3-chloro-4-methylumbelliferyl thionophosphate; Diethyl thiophosphoric acid ester of 3-chloro-4-methyl-7-hydroxycoumarin; Diethyl-O-(3-chloro-4-methyl-7-coumarinyl) phosphorothioate; Diolice; Meldane; Meldone; Muscatox; Negashunt; Negasunt; O,O-Diaethyl-O-(3-chlor-4-methyl-cumarin-7-yl)-monothiophosphat [German]; O,O-Diethyl 3-chloro-4-methyl-7-umbelliferone thiophosphate; O,O-Diethyl O-(3-chloro-4-methyl-2-oxo-2H-1-benzopyran-7-yl)phosphorothioate; O,O-Diethyl O-(3-chloro-4-methyl-2-oxo-2H-benzopyran-7-yl)phosphorothioate; O,O-Diethyl O-(3-chloro-4-methyl-2-oxo-2h-benzopyran-7-yl); phosphorothioate; O,O-Diethyl O-(3-chloro-4-methyl-7-coumarinyl)phosphorothioate; O,O-Diethyl O-(3-chloro-4-methylcoumarinyl-7) thiophosphate; O,O-Diethyl O-(3-chloro-4-methylumbelliferone) thiophosphate; O,O-Diethyl O-(3-chloro-4-methylumbelliferyl)phosphorothioate; O,O-Diethyl-O-(3-chloor-4-methyl-cumarin-7-yl)monothiofosfaat [Dutch]; O,O-Dietil-O-(3-cloro-4-metil-cumarin-7-il-monotiofosfato); [Italian]; O-(3-Chloro-4-methyl-2-oxo-2H-1-benzopyran-7-yl) O,O-diethyl phosphorothioate; O-(3-Chloro-4-methyl-7-coumarinyl) O,O-diethylphosphorothioate; O-3-Chloro-4-methyl-7-coumarinyl O,O-diethyl phosphorothioate; OMS 485; Phosphorothioic acid, O,O-diethyl ester, O-ester with 3-chloro-7-hydroxy-4-methylcoumarin; Phosphorothioic acid, O-(3-chloro-4-methyl-2-oxo-2H-1-benzopyran-7-yl) O,O-diethyl ester; Resitox; Suntol; Thiophosphate de O,O-diethyle et de O-(3-chloro-4-methyl-7-coumarinyle) [French]; Umbethion; [ChemIDplus] |
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| Category |
Organophosphates |
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| Description |
Brownish crystals with a slight odor of sulfur; [CAMEO] |
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| Sources/Uses |
"Used for the control of a wide variety of livestock insects including cattle grubs, lice, scabies, flies, and ticks; the common ectoparasites of sheep, goats, horse, swine, and poultry as well as for screwworms in all these animals." [CAMEO] Used as an insecticide and ascaricide for direct application to cattle, goats, horses, sheep, and swine; |
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| Reference Link |
EXTOXNET PIP - COUMAPHOS |
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| Exposure Assessment |
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| BEI |
Cholinesterase activity in red cells = 70% of individual's baseline, sample time discretionary; [ACGIH] |
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| Skin Designation (ACGIH) |
Yes |
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| TLV (ACGIH) |
0.05 mg/m3, inhalable fraction and vapor |
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| Vapor Pressure |
9.7 x 10 -08 mm Hg |
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| Lethal Concentration |
LC50 (rats) = 303 mg/m3 |
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| Half Life |
There was no bioaccumulation in rats. 5% of a dermal dose and 70% of an oral dose were eliminated in 7 days. [EXTOXNET] |
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| Adverse Effects |
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| Other Poison |
Organophosphate |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: COUMAPHOS
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