Home Active Agrochemical IngredientAgrochemical Discovery Candidates (New ISO) New ISO May 2025: Metcyclofenstrobin, a Strobilurin Fungicide by Syngenta

New ISO May 2025: Metcyclofenstrobin, a Strobilurin Fungicide by Syngenta

May 7, 2025 – The International Organization for Standardization (ISO) provisionally approved Metcyclofenstrobin as the common name for a new strobilurin fungicide developed by Syngenta Crop Protection AG.

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ISO_Provisionally_Approved_Metcyclofenstrobin_Fungicide_Syngenta

Metcyclofenstrobin is a methoxyacrylate-based compound engineered for broad-spectrum fungal control. It shows strong efficacy against a wide range of plant diseases, including Alternaria solani (early blight in tomatoes), Colletotrichum lagenarium (anthracnose in cucurbits), Erysiphe graminis f.sp. tritici (wheat powdery mildew), Microdochium nivale (snow mold, foot rot in cereals), Cercospora arachidicola (brown leaf spot in peanuts), Phakopsora pachyrhizi (soybean rust), Phytophthora infestans (late blight in potatoes and tomatoes), Plasmopara viticola (grapevine downy mildew), Puccinia recondita (brown rust), and Pyricularia oryzae (rice blast), among others.

  • Status: ISO (Provisionally Approved)
  • IUPAC Name: methyl (2Z)-2-(5-cyclohexyl-2-methylphenoxy)-3-methoxyacrylate
  • CAS RN.: 2490157-71-4
  • Activity: Fungicides (Phenoxypropenoate)
  • Inchikey: OCIRCFJCEQNJDN-ATVHPVEESA-N
  • Inchi: InChI=1S/C18H24O4/c1-13-9-10-15(14-7-5-4-6-8-14)11-16(13)22-17(12-20-2)18(19)21-3/h9-12,14H,4-8H2,1-3H3/b17-12-

Global Patent Protection

Syngenta has filed an international product patent application for the compound Metcyclofenstrobin, which set to expire in 2040. In addition to product patent, the company has filed a series of patent applications relating to the synthesis processes, methods of use, and various compositions involving Metcyclofenstrobin.

For more detailed information on Metcyclofenstrobin visit ChemRobotics AgroPat Ultimate Discovery Suite N Platform – ChemRobotics.com (Global Agrochemical Intelligence Database)

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