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| Names | |
|---|---|
| IUPAC name Methyl 2-(dimethylamino)-N-[(methylcarbamoyl)oxy]-2-oxoethanimidothioate | |
| Other names N,N-Dimethyl-2-methyl-carbamoyloximino-2-(dimethylthio) acetamide; Thioxamyl | |
| Identifiers | |
3D model (JSmol) | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.041.299 |
| UNII | |
| |
| |
| Properties | |
| C7H13N3O3S | |
| Molar mass | 219.26 g·mol−1 |
| Appearance | Colorless crystalline solid[1] |
| Density | 0.97 g/cm3[1] |
| Melting point | 100 to 102 °C (212 to 216 °F; 373 to 375 K) 108 to 110 °C (dimorphic)[1] |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Oxamyl is a chemical used as apesticide that comes in two forms: granulated and liquid. The granulated form has beenbanned in theUnited States.[2] It is commonly sold under the trade nameVydate.
It is classified as anextremely hazardous substance in the United States as defined in Section 302 of the U.S.Emergency Planning and Community Right-to-Know Act (42 U.S.C. 11002), and is subject to strict reporting requirements by facilities which produce, store, or use it in significant quantities.[3]
Oxamyl is acarbamate pesticide. According to theWHO Food and Agriculture Organization, "Oxamyl is a colourless crystalline solid with a melting point of 100-102 °C changing to a dimorphic form with a melting point of 108-110 °C. It has a slightly sulfurous odour. Oxamyl is non-corrosive. It has a specific gravity of 0.97 (25°/4°)."[1]
According to theUnited Nations Environment Programme, "This product is efficient in controlling mostnematode species in addition to a large number of sucking and chewing insects such asaphids andthrips." Oxamyl is extremely toxic to humans whether ingested, inhaled, or contact with the skin. Its overuse can also lead toresidue accumulation in food,[2] though its chemical composition—once coming into contact with the soil—rapidly degrades.[4] Signs of Oxamyl poisoning include: Malaise, muscle weakness, dizziness, sweating, Headache, salivation, nausea, vomiting, abdominal pain, Miosis with blurred vision, incoordination, muscle twitching and slurred speech—though symptoms can worsen with severe poisoning. According to the Food and Agriculture Organization, "Contact with the skin, inhalation of dust or spray, or swallowing may be fatal."[1]
Because of its toxicity, its use is restricted in the EU with maximum residue limits for apples and oranges being 0.001 mg/kg since 2024.[5] This is after a 2023 review by theEuropean Food Safety Authority identified areas of concern and chronic consumer exposure concerns.[6][7]
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