An organophosphate insecticide and acaricide
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Labeled Version(s)
39569Phosmet-d6
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Phosmet

Item No. 25812

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
S-[(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)methyl] phosphorodithioic acid, O,O-dimethyl ester
CAS Number
732-11-6
Synonyms
  • Phthalophos
Molecular Formula
C11H12NO4PS2
Formula Weight
317.3
Purity
≥95%
Formulation
A solid
Solubility(Learn about Variance in Solubility)
Chloroform: Slightly solubleMethanol: Slightly soluble
SMILES
O=C1N(CSP(OC)(OC)=S)C(C2=CC=CC=C21)=O
InChi Code
InChI=1S/C11H12NO4PS2/c1-15-17(18,16-2)19-7-12-10(13)8-5-3-4-6-9(8)11(12)14/h3-6H,7H2,1-2H3
InChi Key
LMNZTLDVJIUSHT-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    25 mg

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    Product Description

    Phosmet is an organophosphate insecticide and acaricide.1,2 It is toxic to T. cinnabarinus adults in slide-dip and leaf spray applications (LC50s = 13 and 15.5 ppm, respectively).1 Phosmet (0.1%) decreases the number of Colorado potato beetle (L. decemlineata) adults and third-stage larvae.2 It is effective in controlling S. scabiei in pigs when applied as a 20% pour-on solution.3 Phosmet is toxic to rats via oral administration (LD50 = 230 mg/kg).4 Formulations containing phosmet have been used in the control of insects and mites in agriculture.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Eldefrawi, M.E., Hosny, A.H., Toppozada, A., et al. Susceptibility to acaricides of the mite Tetranychus cinnabarinus infesting cotton in Egypt. J. Econ. Entomol. 58(6), 1106–1110 (1965).

    2. Harris, C.R., and Svec, H.J. Susceptibility of the Colorado potato beetle in Ontario to insecticides. J. Econ. Entomol. 69(5), 625-629 (1976).

    3. Hewett, G.R. Phosmet for the systemic control of pig mange in growing pigs. Vet. Parasitol. 18(3), 265-268 (1985).

    4. Authority, E.F.S. Conclusion on the peer review of the pesticide risk assessment of the active substance phosmet. EFSA J. 9(5), 2162 (2011).