Photolysis of the Insecticide Pyridafenthion and the Effect of Some Photosensitizers

Rong Tsao, Akinori Hirashima, Morifusa Eto

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


When pyridafenthion, O-(l, 6-dihydro-6-oxo-l-phenyl-3-pyridazinyl) O, O-diethyl phosphorothioate, was irradiated with UV light (A = 254 or >300 nm) for 48 hr on a glass surface, two main reactions occurred, giving pyridafenthion-oxon and phenyl maleic hydrazide, 6-hydroxy-2-phenyl-3(2H)-pyridazinone respectively. Some photosensitizers, including riboflavin, rose bengal and cis-dehydromatricaria ester, accelerated photolysis.

Original languageEnglish
Pages (from-to)315-319
Number of pages5
JournalJournal of Pesticide Science
Issue number3
Publication statusPublished - 1989

All Science Journal Classification (ASJC) codes

  • Insect Science
  • Health, Toxicology and Mutagenesis


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