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Chemical Identification
Common Name
Mesotrione
中文通用名
硝磺草酮
IUPAC
2-(4-mesyl-2-nitrobenzoyl)cyclohexane-1,3-dione
CAS
2-[4-(methylsulfonyl)-2-nitrobenzoyl]-1,3-cyclohexanedione
CAS No.
104206-82-8
Molecular Formula
C14H13NO7S
Molecular Structure
Category
Activity
Herbicide
Premix
Terbuthylazine+Mesotrione+Propisochlor
Rimsulfuron+Mesotrione+Fluroxypyr-meptyl
Rimsulfuron+Mesotrione
Rimsulfuron+chlorimuron-ethyl+mesotrione
Nicosulfuron+Atrazine+Mesotrione
Mesotrione+Simetryn
Mesotrione+pretilachlor
Mesotrione+Nicosulfuron+Halosulfuron-methyl
Mesotrione+MCPA-sodium+Ametryn
Mesotrione+glyphosate
Mesotrione+Clopyralid
Mesotrione+Butralin
Mesotrione+Bromoxynil octanoate+Atrazine
Mesotrione+Atrazine+Fluroxypyr-meptyl
Mefenacet+Halosulfuron-methyl+Mesotrione
Mefenacet+Bensulfuron-methyl+Mesotrione
Halosulfuron-methyl+Mesotrione
fluthiacet-methyl+mesotrione
Butachlor+Mesotrione+Atrazine
Atrazine+mesotrione+S-metolachlor
Atrazine+mesotrione
Atrazine Bicyclopyrone Mesotrione S-metolachlor
acetochlor+mesotrione+clopyralid
Premix Parters: azoxystrobin; azoxystrobin fludioxonil; azoxystrobin fludioxonil thiamethoxam; chloroneb; chlorothalonil; copper hydroxide; difenoconazole; difenoconazole fludioxonil; difenoconazole fludioxonil thiamethoxam; fludioxonil; fludioxonil thiamethoxam; folpet; mancozeb; PCNB; thiamethoxam;
Physical Properties
Molecular weight:339.3; Melting point:165 °C; Vapour pressure:5.69 × 10-3 mPa (20 °C).; pKa:3.12; Solubility:In water 2.2 (pH 4.8), 15 ( pH 6.9), 22 ( pH 9) (all in g/l, 20 °C).; Stability:Stable to hydrolysis ( pH 4 - 9).;
Toxicology
(Rat): Oral LD50 >5000 mg/kg. Dermal LD50 >2000 mg/kg. Inhalation LC50 >5 mg/l
Environmental Profile
Ecotoxicology: 
Birds:Acute oral LD50 for bobwhite quail >2000, mallard ducks >5200 mg/ kg.Fish: LC50 (96 h) for bluegill sunfish and rainbow trout >120 mg/l. 

Environmental fate: 
Soil:Stable to hydrolysis under sterile conditions at pH 5-9, with <10% degradation after 30 d (25 °C). Aqueous photolysis DT50 (sterile) 84 d. ADSORPTION: Not persistent in soil. Stable in water. Moderately mobility in soil. WATER SOLUBILITY: 160 mg/l at 20°C (99.7% pure).
Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)

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Nortox registers Mesotriona herbicide in Brazil

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Willowood USA Receives EPA Registration For Willowood Mesotrione 4SC

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Dow AgroSciences receives US registration for Resicore herbicide

Acetochlor Mesotrione Clopyralid

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