Omethoate (C₅H₁₂NO₄PS) is a systemic organophosphorous insecticide and acaricide available as a soluble concentrate. It is used to control insects and mites in horticulture and agriculture, as well as in the home garden.

Quick Facts Names, Identifiers ...

Omethoate

Names
Preferred IUPAC name O,O-Dimethyl S-[2-(methylamino)-2-oxoethyl] phosphorothioate
Other names Dimethoxon O,O-Dimethyl S-methylcarbamoylmethyl phosphorothioate
Identifiers
CAS Number	1113-02-6 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:38730 Y
ChEMBL	ChEMBL2270068 N
ChemSpider	13574 Y
ECHA InfoCard	100.012.907
KEGG	C18662 Y
PubChem CID	14210
UNII	28U28EWE79 Y
CompTox Dashboard (EPA)	DTXSID4037580
InChI InChI=1S/C5H12NO4PS/c1-6-5(7)4-12-11(8,9-2)10-3/h4H2,1-3H3,(H,6,7) Y Key: PZXOQEXFMJCDPG-UHFFFAOYSA-N Y InChI=1/C5H12NO4PS/c1-6-5(7)4-12-11(8,9-2)10-3/h4H2,1-3H3,(H,6,7) Key: PZXOQEXFMJCDPG-UHFFFAOYAZ
SMILES O=C(NC)CSP(=O)(OC)OC
Properties
Chemical formula	C5H12NO4PS
Molar mass	213.19 g/mol
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

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Omethoate works by inhibiting the enzyme acetylcholinesterase. This inhibition over-stimulattes parts of the nervous system that rely on acetylcholine to transmit nerve impulses. ^[1]

It is an irritant to the skin and mucous membranes. Its toxicity and hazard potential are still under review because of concerns about its safety.^[2] Additionally, it cannot be used on food products.

The acceptable daily intake (ADI) has been amended from 0.0003 to 0.0004 mg/kg bw ^[1]

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