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pyrethrin

General Crossword Questions for “pyrethrin”

  • Incinerator insuffic­ient to retain rare insecticide

Encyclopedia

  • Pyrethrin I and pyrethrin II are structurally related esters with a cyclopropane core, (+)-trans-chrysanthemic acid in the case of pyrethrin I.[1][2] They differ by the oxidation state of one carbon. They are viscous liquids that oxidize to become inactivated. — “Pyrethrin - Wikipedia, the free encyclopedia”, en.wikipedia.org
  • Pyrethrin I is one of the two pyrethrins, natural organic compounds with potent insecticidal activity. It is an ester of (+)-trans-chrysanthemic acid The synthesis of pyrethrin I involves the esterification of (+)-trans-chrysanthemic acid. — “Pyrethrin I - Wikipedia, the free encyclopedia”, en.wikipedia.org
  • Pyrethrin II is one of the two pyrethrins, natural organic compounds with potent insecticidal activity. · Etofenprox · Fenvalerate · Imiprothrin · Permethrin · Phenothrin · Prallethrin · Pyrethrin (I, II; chrysanthemic acid) · Pyrethrum · Resmethrin · Tetramethrin · Tralomethrin · Transfluthrin. — “Pyrethrin II - Wikipedia, the free encyclopedia”, en.wikipedia.org

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