Benazolin-ethyl (CAS No.: 25059-80-7 )

  Generic: Benazolin-ethyl
Chem name: ethyl-4-chloro-2,3-dihydro-2-oxo-1,3-benzothiazol-3-ylacetate
CAS No: 25059-80-7
Molecular formula: C11H10ClNO3S
Molecular weight: 271.7
Physical & Chemical Character
Appearance Tech. pale yellow crystalline powder. M.p.79.2℃. V.p.37mPa(20℃). Solubility Soluble in water 47mg/l(20℃). In acetone 229, dichloromethane 603, ethyl acetate 148, methanol 28.5, toluene 198(g/l, 20℃). Stability Stable to at least 300℃. Stable in acid and in neutral solution; at PH 9.18 DT50 7.6d(25℃). No significant breakdown in water in natural sunlight.

Toxicity
Oral Acute oral LD50 for mice＞4000, rats＞6000, dogs＞5000mg/kg. Skin and eye Acute percutaneous LD50 for rats＞2100mg/kg; not irritant to skin and eyes of rabbits. Not a sensitizer. Inhalation LC50(4h)＞5.5mg/l. Low acute to toxicity by inhalation route. Toxicity class WHO (a.i.) Ⅲ.

Application
Selective, systemic, growth-regulator herbicide. Post-emergence control of many annual broad-leaved weeds, particularly black bindweed, common chickweed, cleavers, and charlock, in oilseed rape. In combination with other herbicide, used for control of a wider range of broad-leaved weeds in oilseed rape, cereals, grassland, clover, alfalfa, and flax.