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    Metamitron

    [Molecular Formula] C10H10N4O

    [CIPAC No.] 381

    [Chemical Name] 3-Methyl-4-amino-6-phenyl-1,2,4-triazin-5(4H)-one

    [CAS RN.] 41394-05-2

    [Structural Formula]

      

      

    [Molecular Weight] 202.2

    [Use] It is photosynthesis inhibitor mainly used for the control of night shade, chickweed, annual meadowgrass, amur foxtail etc; suitable for sugar-purpose beet and feed beet. Half life is 3 months. Use level: 3.5-5.0kg/(a.i.)/hm2.

    [Properties] Pure product is light yellow crystal, TC is light yellow solid, m.p.: 166.9°C, vapor tension: (20°C)8.6×10-4pa, relative density: 1.35(22.5°C), solubility (25°C) in water: 1.7mg/L, easily soluble in methanol and methylene dichloride.

    [Toxicity] Rat acute per os LD50>1200mg/kg, mouse LD50>650mg/kg, rat acute percutaneous LD50>4000mg/kg.

    [Spec.]

    Item
    Preparation
    Assay Water Insol. in acetone PH-value Emulsion stability(dilution 200 times)
    98% Metamitron TC ≥98.0% ≤0.3% ≤0.1% 6.0-8.0 -
    70% Metamitron WP ≥70.0% ≤0.5% - 6.0-8.0 Qualified

    [Packing] 70% WP: upon users's request.

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