Tribenuron-Methyl

25KGS/Bag； 25kg/Drum

Common name tribenuron-methyl  

IUPAC name methyl 2-[4-methoxy-6-methyl-1,3,5-triazin-2-yl(methyl)carbamoylsulfamoyl]benzoate
Chemical Abstracts name methyl 2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)methylamino]carbonyl]amino]sulfonyl]benzoate  Other names metometuron 

CAS RN [101200–48–0]  

EC no. 401–190–1

PHYSICAL CHEMISTRY
Composition Tech. is >95%. Mol. wt. 395.4 M.f. C₁₅H₁₇N₅O₆S  Form Off-white powder, with a slight pungent odour.  M.p. 142 °C  V.p. 5.2 × 10^-5 mPa (25 °C) K_ow logP = 0.78 (pH 7, 25 °C) Henry 1.03 × 10^-8 Pa m³ mol^-1 (pH 7, 20 °C) S.g./density 1.46 (20 °C) Solubility In water 0.05 (pH 5), 2.04 (pH 7), 18.3 (pH 9) (all in g/l, 20 °C). In acetone 3.91 × 10⁴, acetonitrile 4.64 × 10⁴, ethyl acetate 1.63 × 10⁴, n-heptane 20.8, methanol 2.59 × 10³ (all in mg/l, 20 °C). Stability No significant photolysis occurs over the pH range 5–9 at 25 °C. Does not ignite nor support combustion. Hydrolysis DT₅₀ <1 d (pH 5), 15.8 d (pH 7), stable (pH 9) (all 25 °C). pKa 4.7