Butamifos
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.126.299
EC Number
  • 609-231-7
KEGG
UNII
  • InChI=1S/C13H21N2O4PS/c1-5-11(4)14-20(21,18-6-2)19-13-9-10(3)7-8-12(13)15(16)17/h7-9,11H,5-6H2,1-4H3,(H,14,21)
    Key: OEYOMNZEMCPTKN-UHFFFAOYSA-N
  • CCC(C)NP(=S)(OCC)OC1=C(C=CC(=C1)C)[N+](=O)[O-]
Properties
C13H21N2O4PS
Molar mass 332.35 g·mol−1
Hazards
GHS labelling:[1]
GHS07: Exclamation markGHS09: Environmental hazard
Warning
H302, H410
P264, P270, P273, P301+P317, P330, P391, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Butamifos is an herbicide that is used to control weeds.[2]

Production

The production of butamifos is based on N-[chloro(ethoxy)phosphinothioyl]butan-2-amine and 5-methyl-2-nitrophenol and is described in the following reaction sequence:[3]

Synthesis of butamifos

Properties

Butamifos is a chiral molecule. The technical product uses a mixture of the (R)- and (S)-isomers.[4]

In a study, the level of pesticide contamination in soil and water of an agriculturally intensive area in Nepal was investigated. Endosulfan, Iprobefos, monocrotophos, mevinphos, and butamifos were detected in water samples, while cypermethrin, dichlorvos, and cyfluthrin were detected in soil samples. The increased concentration of butamifos in water may be due to higher water solubility and lower affinity for adsorption in soil.[5]

Use

Application and mode of action

Butamifos is used on beans, turf and various vegetables.[3] The active ingredient is a non-systemic, selective herbicide. Its effect is based on inhibition of microtubule formation. It also acts as an acetylcholinesterase inhibitor, making it moderately toxic to mammals.[4][6]

Trade name

A crop protection product containing the active ingredient butamifos is marketed under the trade name Cremart.[3]

Registration

No plant protection products containing butamifos are registered in the European Union or Switzerland.[7]

References

  1. ↑ "Butamifos". pubchem.ncbi.nlm.nih.gov. Retrieved 5 August 2022.
  2. ↑ Toshiyuki Katagi (March 1993), "Photochemistry of organophosphorus herbicide butamifos", Journal of Agricultural and Food Chemistry (in German), vol. 41, no. 3, pp. 496–501, doi:10.1021/jf00027a028, ISSN 0021-8561
  3. 1 2 3 Thomas A. Unger (1996), [, p. 376, at Google Books "Butamifos"], Pesticide Synthesis Handbook (in German), Elsevier, p. 376, doi:10.1016/b978-081551401-5.50299-9, ISBN 978-0-8155-1401-5 {{citation}}: Check |url= value (help)
  4. 1 2 Butamifos in the Pesticide Properties DataBase (PPDB)
  5. ↑ Kafle, B. K., Pokhrel, B., Shrestha, S., Raut, R., Dahal, B. M. (2015), "Determination of pesticide residues in water and soil samples from Ansikhola watershed, Kavre, Nepal", International Journal of Geology, Earth & Environmental Sciences (in German), vol. 5, no. 2, pp. 119-127{{citation}}: CS1 maint: multiple names: authors list (link)
  6. ↑ Paranjape, Kalyani. (2014), [, p. 74, at Google Books The pesticide encyclopedia] (in German), Wallingford, Oxfordshire UK: CABI, p. 74, ISBN 978-1-78064-014-3 {{citation}}: Check |url= value (help)
  7. ↑ "European Commission Directorate-General for Health and Food Safety".
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