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Mevinphos E,Z Isomers Formulae V.1.svg
IUPAC name
2-methoxycarbonyl-1-methylvinyl dimethyl phosphate
26718-65-0 YesY
ChemSpider 9185 N
Jmol 3D model Interactive image
PubChem 9560
Molar mass 224.15 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)
Vapor pressure 0.003 mmHg (20°C)[2]
Flash point 175 °C; 347 °F; 448 K [2]
Lethal dose or concentration (LD, LC):
3 mg/kg (rat, oral)
4 mg/kg (mouse, oral)
6-7 mg/kg (rat, oral)[3]
14 ppm (rat, 1 hr)[3]
US health exposure limits (NIOSH):
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).
N verify (what is YesYN ?)
Infobox references

Mevinphos is an organophosphate insecticide that acts as an acetylcholinesterase inhibitor to control insects in a wide range of crops. It is most commonly used for the control of chewing and sucking insects, as well as spider mites.


Mevinphos is produced by the reaction of trimethyl phosphite with chloroacetoacetate.[1]


  1. ^ a b Muller, Franz, ed. (2000). Agrochemicals: Composition, Production, Toxicology, Applications. Toronto: Wiley-VCH. ISBN 3-527-29852-5. 
  2. ^ a b c d e f g "NIOSH Pocket Guide to Chemical Hazards #0503". National Institute for Occupational Safety and Health (NIOSH). 
  3. ^ a b "Phosdrin". Immediately Dangerous to Life and Health. National Institute for Occupational Safety and Health (NIOSH). 

Further reading[edit]

  • Wolverton, B.C., ed. (1975). Aquatic Plants for Removal of Mevinphos from the Aquatic Environment; Volume 72720 of NASA Technical memorandum. Mississippi: National Space Technology Laboratories (U.S.). 

External links[edit]

  • Mevinphos in the Pesticide Properties DataBase (PPDB)