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Tribenuron-methyl Herbicide

Posted at: Offers to Sell and Export | Posted on: Fri 18 Jun, 2010 6:28 am | Product Category: Herbicide services [53]
tribenuron methyl herbicide
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Chemical Abstracts name: methyl 2-(4-methoxy-6-methyl-1, 3, 5-triazin-2-yl)methylamino]carbonyl]amino]sulfonyl]benzoate


rn: [101200-48-0]


Common name: tribenuron

IUPAC name: 2-[4-methoxy-6-methyl-1, 3, 5-triazin-2-yl(methyl)carbamoylsulfamoyl]benzoic acid

Chemical Abstracts name: 2-(4-methoxy-6-methyl-1, 3, 5-triazin-2-yl)methylamino]carbonyl]amino]sulfonyl]benzoic acid

Cas rn: [106040-48-6]

Physical chemistry


Composition: Tech. is >95%. Mol. wt.: 395.4; M.f.: C15H17N5O6S; Form: Light brown, odourless solid. M.p.: 141 C; V.p.: 5.2x10-5 mPa (25 C). KOW: logP = -0.44 (pH 7). Henry: 1.03x10-8 Pa m3 mol-1 S.g./density: 1.5 (25 C). Solubility: In water 0.05 (pH 5), 2.04 (pH 7) (both in g/l, 20 C). 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 C. On hydrolysis (45 C), stable at pH 8-10 but rapid loss at pH <7 or pH >12. Relatively unstable in most organic solvents. pKa: 5/


Mol. wt.: 381.4; M.f.: C14H15N5O6S



Biochemistry: Branched chain amino acid synthesis (ALS or AHAS) inhibitor. Acts by inhibiting biosynthesis of the essential amino acids valine and isoleucine, hence stopping cell division and plant growth. Selectivity derives from rapid metabolism in the crop.

Mode of action: Rapidly absorbed by foliage and roots and translocated throughout the plant. Susceptible plants cease growth almost immediately after post-emergence treatment and are killed in 7-21 days. Surfactants increase the activity of tribenuron-methyl on certain broad-leaved weeds.

Uses: Post-emergence control of broad-leaved weeds in spring and winter cereals, at 9-30 g/ha.

Formulation types: TB; WG.

Mammalian 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: 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 (Table 5); EPA (formulation) III

EC hazard: R43



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 ug/l.

Bees: LD50 for honeybees >100 ug/bee.

Worms: LD50 for earthworms >2000 ppm.

Environmental fate


Soil/Environment: Half-life of tribenuron-methyl in soil 1-7 days. No significant photodecomposition under field conditions. Degradation in the soil occurs by hydrolysis and by direct microbial degradation. Hydrolysis is affected by soil pH, being faster in acidic than alkaline soils. Losses due to volatilisation are not significant.

Company Contact:

No member photo
Contact Name: Kevin Xu
Company Name: Shanghai Skyblue Chemical Co., Ltd.
Email: Email
Tel: 86-21-58356613
Fax: 86-21-58358362
Street Address: Rm 15A02, Changhang
Mansion, No.800, Zhangyang Road,
Pudong, Shanghai, 200122, China
Website: http://www.skybluechem.com
Member name: skybluechem
Country: China-CN China
Member Since: 17 June 2010
Total Leads: 76 skybluechem Import Export Business Leads
Business focus: Piperonyl Butoxide, D-allethrin, Diethyltoluamide, Cartap, Tetramethrin, Atrazine, Quizalofop-p-ethyl, Tribenuron-methyl, Acetochlor, Ametryn, Simazine
Verify: Safe Import Export Tips
Product Category: Herbicide services [53]

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