【Physical form】:Colourless crystals.
【Density】:1.46 (20 °C);
【Melting point】:177.8-179.5 °C;
【Vapour pressure】:4.2×10-5 mPa (25 °C);
【Partition coefficient(n-octanol and water)】:logP = 1.3 (unstated pH);
【pKa】:3.7; Solubility:In water 9.96 mg/l (20 °C). In methanol 4.32, hexane 0.0185, benzene 15.6, chloroform 200, acetone 33.7 (all in g/l, 20 °C).;
【Stability】:Stable at 50 °C for 6 months. Relatively stable at pH 7. Unstable in acidic or alkaline media. Soluble in chloroform, and ethyl acetate.
It has eminent activity against a broad spectrum of annual and perennial rice paddy weeds, especially broad leaf weeds and sedges, with pre-emergence and early post-emergence application and at extremely low use rates