Pirimiphos-methyl

Pirimiphos-methyl
IUPAC name O-[2-(Diethylamino)-6-methylpyrimidin-4-yl] O,O-dimethyl phosphorothioate
Other names Pirimifos-methyl
Identifiers
CAS number	29232-93-7 Y
KEGG	C18403 Y
InChI InChI=1/C11H20N3O3PS/c1-6-14(7-2)11-12-9(3)8-10(13-11)17-18(19,15-4)16-5/h8H,6-7H2,1-5H3
Properties
Molecular formula	C11H20N3O3PS
Molar mass	305.33 g mol−1
Appearance	Straw-colored liquid
Density	1.147 g/mL (30 °C)
Melting point	15-18°C
Boiling point	decomposes before boiling
Solubility in water	5.0 mg/L (30 °C)
Hazards
EU classification	Harmful (Xn), Dangerous for the environment(N)
R-phrases	R22, R50/53
S-phrases	(S2), S60, S61
Flash point	46 °C (115 °F)
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Organophosphate insecticide with pirimiphos-methyl (no longer in production)

Pirimiphos-methyl is a phosphorothioate used as an insecticide. It was originally developed by Imperial Chemical Industries Ltd., now Syngenta, in 1967.

This is one of several compounds used for vector control of Triatoma. These insects are implicated in the transmission of Chagas disease in the Americas. Pirimiphos-methyl can be applied as an interior surface paint additive, in order to achieve a residual pesticide effect.

Pyrimiphos-ethyl is a related insecticide in which the methyl groups are replaced with ethyl groups.