Methomyl

Methomyl is a carbamate insecticide introduced in 1966. It is highly toxic to humans, livestock, pets, and wildlife. The EU and UK imposed a pesticide residue limit of 20 µg/kg for apples and oranges.

Methomyl
(E)-Methomyl
(Z)-Methomyl
Names
IUPAC name
(E,Z)-methyl N-{[(methylamino)carbonyl]oxy}ethanimidothioate
Other names
Lannate, Mesomile, Methomex, Nudrin
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.037.089
  • InChI=1S/C5H10N2O2S/c1-4(10-3)7-9-5(8)6-2/h1-3H3,(H,6,8) N
    Key: UHXUZOCRWCRNSJ-UHFFFAOYSA-N N
  • InChI=1/C5H10N2O2S/c1-4(10-3)7-9-5(8)6-2/h1-3H3,(H,6,8)
    Key: UHXUZOCRWCRNSJ-UHFFFAOYAU
  • CNC(=O)ON=C(C)SC
Properties
C5H10N2O2S
Molar mass 162.20
Appearance White crystalline solid
Odor Slight, sulfur-like
Density 1.2946 g/cm3
Melting point 78 to 79 °C (172 to 174 °F; 351 to 352 K)
58 g/L
Vapor pressure 0.00005 mmHg (25°C)
Hazards
Flash point Noncombustible
NIOSH (US health exposure limits):
PEL (Permissible)
 none
REL (Recommended)
 TWA 2.5 mg/m3
IDLH (Immediate danger)
 N.D.
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Methomyl is a common active ingredient in commercial fly bait, for which the label instructions in the United States warn that "It is a violation of Federal Law to use this product in a manner inconsistent with its labeling." "Off-label" uses and other uses not specifically targeted at problem insects are illegal, dangerous, and ill-advised.

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