【CAS】:methyl2-[[[[[(4,6-dimethoxypyrimidin-2-yl)-amino]carbonyl]amino]sulfonyl]methyl]benzoate
【CAS No.】:83055-99-6
【Molecular Formula】:C16H18N4O7S

【Molecular weight】:410.4;

【Physical form】: White to pale yellow, odourless solid.

【Density】:1.41;

【Composition】:Tech. is 96.5%.

【Melting point】:185-188 °C;

【Vapour pressure】:2.8 ×10-9 mPa (25 °C);

【Henry constant】:1.4×10-11 Pa m3 mol-1;

【Partition coefficient(n-octanol and water)】:logP = 2.45 (pH 1.5), 0.62 (pH 7) (both at 30 °C);

【pKa】:5.2; Solubility:In water 2.9 (pH 5), 12 (pH 6), 120 ( pH 7), 1200 (pH 8) (all in mg/l, 25 °C). In acetone 1.38, acetonitrile 5.38, dichloromethane 11.7, ethyl acetate 1.66, hexane >0.01, ;

【Stability】:Aqueous solutions are most stable under slightly alkaline conditions (pH 8), and slowly degrade under acidic conditions; DT50 11 d (pH 5), 143 d (pH 7) (25 °C). Soluble in methylene chloride, relatively soluble in acetonitrile, ethyl acetate, acetone, methanol.

Uses of pre- or post-emergence control of broad spectrum of annual and perennial rice paddy weeds in wet-sown and transplanted rice crops.