| Agent Name |
Methyl demeton |
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| Alternative Name |
Demeton-methyl |
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| CAS Number |
8022-00-2 |
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| Formula |
C6-H15-O3-P-S2 |
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| Major Category |
Pesticides |
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| Synonyms |
Bayer 21/116; Demeton M; Demeton methyl; Demeton-methyl; Metasystox; Metasystox forte; Methyl demeton 25 EC; Methyl mercaptophos; Methyl systox; Methyl-mercaptophos; Methylmerkaptofos [Czech]; Phosphorothioic acid, O-(2-(ethylthio)ethyl) O,O-dimethyl ester, mixt. with S-(2-(ethylthio)ethyl) O,O-dimethyl ester; S(and O)-2-(Ethylthio)ethyl O,O-dimethyl phosphorothioate; [ChemIDplus] |
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| Category |
Organophosphates |
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| Description |
Oily, colorless to pale-yellow liquid with an unpleasant odor. [insecticide] [Note: Technical grade consists of 2 isomers: thiono & thiolo.]; [NIOSH] |
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| Sources/Uses |
Used to kill insects on garden crops, fruit, and hops; [ACGIH] |
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| Comments |
It is less toxic than demeton. [ACGIH] |
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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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| MAK |
4.8 mg/m3 |
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| Vapor Pressure |
0.0004 mm Hg |
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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: DEMETON-S-METHYL
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