亚虎老虎机国际平台_亚虎新版官方网app下载_亚虎APP
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  • 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 1L-(1,3,4/2,6)-2,3-dihydroxy-6-hydroxymethyl-4-[(1S,4R,5S,6S)-4,5,6-trihydroxy-3-hydroxymethylcyclohex-2-enylamino]cyclohexyl β-D-glucopyranoside
    Chemical Abstracts name [1S-(1α,4α,5β,6α)]-1,5,6-trideoxy-4-O-β-D-glucopyranosyl-5-(hydroxymethyl)-1-[[4,5,6-trihydroxy-3-(hydroxymethyl)-2-cyclohexen-1-yl]amino]-D-chiro-inositol
    CAS RN [37248-47-8]; [38665-10-0] validoxylamine A (metabolite)
    EEC no.
    CONTROL OBJECT
    Crop
    Control object
    PHYSICAL CHEMISTRY

    Mol. wt. 497.5 

    M.f. C20H35NO13 

    Form Colourless, odourless, hygroscopic powder. 

    M.p. 125.9 °C 

    V.p. <2.6 ×10-3 mPa (25 °C) 

    KOW logP = -4.21 (calc.) 

    S.g./density 1.402 (20 °C) 

    Solubility In water >610× 103 mg/l (20 °C). In hexane, toluene, dichloromethane and ethyl acetate < 0.01, acetone 0.0266, methanol 62.3 (all in g/l, 20 °C). 

    Stability Stable to hydrolysis at pH 5, 7, and 9 (25 °C). 

    Specific rotation [α]D24 +110?(water); hydrochloride [α]D22 = +49?(c = 1 in water) 

    pKa 6.14 (20 °C)

    APPLICATIONGS
    Inhibitor of trehalase, an enzyme which mediates the digestion of the carbohydrate trehalose and transport of glucose to the hyphals tips. Biochemistry
    Non-systemic antibiotic with fungistatic action. Causes abnormal branching of the tips of the pathogen, followed by cessation of further development. Mode of action
    Control of Rhizoctonia solani in rice, potatoes, vegetables, strawberries, tobacco, ginger and other crops; damping-off diseases of cotton, rice and sugar beet, etc. Applied as a foliar spray, soil drench, seed dressing, or by soil incorporation, at 1.25-1.56 g/ha (liquid), 9-12 g/ha (DL formulation), and 0.090 mg/kg (DL or seed dressing). Uses
    PRODUCT INFORMATION
    Standard of technical material
    Testing itemsStandard(w/w)
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