Names | |
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IUPAC name 2-methoxycarbonyl-1-methylvinyl dimethyl phosphate | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
ECHA InfoCard | 100.029.177 |
PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
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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 their standard state (at 25 °C [77 °F], 100 kPa). |
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Mevinphos is produced by the reaction of trimethyl phosphite with chloroacetoacetate. [1]
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Sulfotep (also known as tetraethyldithiopyrophosphate and TEDP) is a pesticide commonly used in greenhouses as a fumigant. The substance is also known as Dithione, Dithiophos, and many other names. Sulfotep has the molecular formula C8H20O5P2S2 and belongs to the organophosphate class of chemicals. It has a cholinergic effect, involving depression of the cholinesterase activity of the peripheral and central nervous system of insects. The transduction of signals is disturbed at the synapses that make use of acetylcholine. Sulfotep is a mobile oil that is pale yellow-colored and smells like garlic. It is primarily used as an insecticide.
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