 | |
| Names | |
|---|---|
| IUPAC name 2-methoxycarbonyl-1-methylvinyl dimethyl phosphate | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider |
|
| ECHA InfoCard | 100.029.177 |
| UNII | |
| |
| |
| Properties | |
| C7H13O6P | |
| Molar mass | 224.149 g·mol−1 |
| Appearance | Colorless liquid[1] |
| Density | 1.25 g/mL[2] |
| Melting point | 21 °C (70 °F; 294 K) (E isomer); 6.9 °C (Z isomer) |
| miscible[2] | |
| Vapor pressure | 0.003 mmHg (20°C)[2] |
| Hazards | |
| Flash point | 175 °C; 347 °F; 448 K[2] |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) | 3 mg/kg (rat, oral) 4 mg/kg (mouse, oral) 6-7 mg/kg (rat, oral)[3] |
LC50 (median concentration) | 14 ppm (rat, 1 hr)[3] |
| NIOSH (US health exposure limits): | |
PEL (Permissible) | TWA 0.1 mg/m3 [skin][2] |
REL (Recommended) | TWA 0.01 ppm (0.1 mg/m3) ST 0.03 ppm (0.3 mg/m3) [skin][2] |
IDLH (Immediate danger) | 4 ppm[2] |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Mevinphos is a toxicorganophosphateinsecticide that acts as anacetylcholinesterase inhibitor to control insects in a wide range of crops. It was most commonly used for the control of chewing and sucking insects likeaphids,grasshoppers,cutworms,leafhoppers, andcaterpillars, as well asspider mites andticks.[4] Common synonym names are duraphos, fosdrin, menite, mevinfos, mevinox, phosdrin, and phosdrine. While there is no specific ban in theEU, it is not approved for use in any member nations.[5] Nor is it approved for use inCanada.[6] TheEPA issued a Cancellation Order for all Mevinphos registrations on June 30, 1994, effectively banning its manufacture and use in theUnited States, all manufacture ceased shortly after, and its use was officially banned after February 28, 1995.[7]
Mevinphos is produced by the reaction oftrimethyl phosphite with chloroacetoacetate.[1]
