|Jmol-3D images||Image 1|
|Molar mass||162.21 g mol−1|
|Melting point||78-79 °C|
|Solubility in water||58 g/L|
| (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Methomyl is a carbamate insecticide. It was introduced in 1966, but its use is restricted because of its high toxicity to humans. Its current primary use is on alfalfa for forage. The EU and UK have imposed these restrictions by allowing a maximum pesticide residue limit of 0.02 mg/kg for apples and oranges. 0.02 mg/kg is the limit of detection.
It has been found in residues on vegetables and spices in Thailand exceeding safety standards in 2012, due to not being listed on the Dangerous Substances Act, along with carbofuran, dicrotophos and EPN.
Methomyl is the active ingredient in commercial fly bait granules which are mixed with a cola drink to kill bothersome raccoon, skunk and opossum. Using methomyl in this "off-label" way may be against the law in some of the United States. 
First preparing ester
Second preparing oxime from ester
Third preparing product from isocyanate and oxime.
- Merck Index, 11th Edition, 5905
- CDC - NIOSH Pocket Guide to Chemical Hazards
- Methomyl at Extension Toxicology Network
- Methomyl at PAN Pesticide Database
- "Cancer-causing chemical residues found in vegetables". Bangkok Post. 12/07/2012.
- Conservation Warden Warns: Fly bait to control wild animals – illegal and a bad idea (Wisconsin Department of Natural Resources)
- Farm stores promoted poisoning raccoons, state chemist says