亚虎老虎机国际平台_亚虎新版官方网app下载_亚虎APP
  • NOMENCLATURE
  • CONTROL OBJECT
  • PHYSICAL CHEMISTRY
  • APPLICATIONS
  • PRODUCT INFORMATION
  • NOMENCLATURE
    Common name 亚虎老虎机国际平台_亚虎新版官方网app下载_亚虎APP
    IUPAC name 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-ethylsulfonyl-2-pyridylsulfonyl)urea
    Chemical Abstracts name N-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]-3-(ethylsulfonyl)-2-pyridinesulfonamide
    CAS RN 122931-48-0
    EEC no.
    CONTROL OBJECT
    Crop
    Control object
    PHYSICAL CHEMISTRY

    Composition Tech. is 99%. 

    Mol. wt. 431.4 

    M.f. C14H17N5O7S2 

    Form Colourless crystals. 

    M.p. 172-173 °C (purity >98%) 

    V.p. 1.5×10-3 mPa (25 ºC) 

    KOW logP = 0.288 (pH 5), -1.47 (pH 7) (25 ºC) 

    S.g./density 0.784 (25 ºC) 

    Solubility In water (25 ºC) <10 mg/l (unbuffered); 7.3 g/l (buffered, pH 7). 

    Stability On hydrolysis (25 ºC), DT50 4.6 d (pH 5), 7.2 d (pH 7), 0.3 d (pH 9). 

    pKa 4.0

    APPLICATIONGS
    Branched chain amino acid synthesis (ALS or AHAS) inhibitor. Acts by inhibiting biosynthesis of the essential amino acids valine and isoleucine, hence stopping cell division and plant growth. Crop selectivity derives from rapid, selective metabolism by contraction of the sulfonylurea group and ring migration (L. Martinetti et al., Proc. Br. Crop Prot. Conf. - Weeds, 1995, 1, 405) and by hydroxylation on the pyrimidine ring, followed by glucose conjugation (M. K. Koeppe, IUPAC 5E-003 (1998)); see Environmental Fate. Biochemistry
    Selective systemic herbicide, absorbed by the foliage and roots, with rapid translocation to the meristematic tissues. Mode of action
    亚虎老虎机国际平台_亚虎新版官方网app下载_亚虎APP is a post-emergence sulfonylurea herbicide that effectively controls most annual and perennial grasses and several broad-leaved weeds in maize. Also used in tomatoes and potatoes. The target rate for most situations is 15 g/ha. 亚虎老虎机国际平台_亚虎新版官方网app下载_亚虎APP has a wide crop-safety margin under most conditions. Uses
    PRODUCT INFORMATION
    Standard of technical material
    Testing itemsStandard(w/w)
    Content
    Loss of drying
    Water
    Formulation type
    content
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    Typical application rates