JIAHUA CROP CHEMICALS
  English      |     Spanish
E-mail: 
Password: 
           
 
Crop Chemicals
   Herbicides
   Insecticide
   Fungicides
   Plant Growth Regulator
Fertilizer
Basic Chemicals
   Liquid Chloride
   Sodium Hydroxide
   Yellow Phosphorus
   Sulfuric Acid
Intermediate Products
  Search:
  Home > Products > Herbicides
Tribenuron-methyl
Common name: Tribenuron-methyl
Chemical Abstracts name:
Methyl 2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)methylamino]carbonyl]amino]sulfonyl]benzoate
CAS RN:[101200-48-0]
 
PHYSICAL CHEMISTRY
Mol. wt.: 395.4
Form:Light brown, odourless solid.
M.p.: 141 ºC
V.p.: 5.2×10-5 mPa (25 ºC)
Kow logP= -0.44 (pH 7)
Henry:1.03×10-8 Pa m3 mol-1
S.g./density: 1.5 (25 ºC)
Solubility In water 0.05 (pH 5), 2.04 (pH 7) (both in g/l, 20 ºC). In acetone 43.8, acetonitrile 54.2, carbon tetrachloride 3.12, ethyl acetate 17.5, hexane 0.028, and methanol 3.39 (all in mg/l, 25 °C).
Stability  Stable at 45 ºC. On hydrolysis (45 ºC), stable at pH 8-10 but rapid loss at pH <7 or pH >12. Relatively unstable in most organic solvents.
 
TOXICOLOGY
Oral Acute oral  LD50 for rats >5000 mg/kg.
Skin and eye Acute percutaneous LD50 for rabbits >2000 mg/kg. Non-irritating to skin (rabbits); mild (reversible) irritant to eyes. Mildly sensitising to skin (guinea pig maximisation test).
Inhalation  LC50 (4 h) for rats >5.0 mg/l air.
NOEL (2 y) for rats 25 ppm diet; (18 mo) for mice 200 ppm diet (30 mg/kg b.w. daily); (1 y) for dogs 250 ppm diet (8.2 mg/kg b.w. daily); (90 d) for rats 100, for mice 500, for dogs 500 mg/kg diet. Non-teratogenic in rats at 20 mg/kg daily.
ADI (JMPR) 0.008 mg/kg. Other Non-mutagenic in the Ames test, and negative in CHO, unscheduled DNA, in vivo cytogenetic, in vivo mouse micronucleus, and in vitro human lymphocyte assays.
Toxicity class WHO (a.i.) III
EPA (formulation) III
EC hazard R43
 
ECOTOXICOLOGY
Birds Acute oral   LD50 for bobwhite quail >2250 mg/kg. Dietary LC50 (8 d) for bobwhite quail and mallard ducks >5620 mg/kg.
Fish LC50 (96 h) for bluegill sunfish and rainbow trout >1000 mg/l.
Daphnia   LC50 (48 h) 720 mg/l (unfed), 1000 mg/l (fed).
Algae  EC50 (120 h) for green algae and blue-green algae >11.5 mg/l.
Bees  LD50 for honeybees >100 mg/bee.
Worms   LD50 for earthworms >2000 ppm.
 

 
Copyright(C)2007, Shanghai Jiahua Crop Chemicals Co., LTD. All Rights Reserved. Supported by NetSun ChemNet ChinaChemNet  Support:YaQi