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Chemical Identification
Common Name
Imazamox
中文通用名
甲氧咪草烟
IUPAC
2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)-5-(methoxymethyl)nicotinic acid
CAS
(±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-(methoxymethyl)-3-pyridinecarboxylic acid
CAS No.
114311-32-9
Molecular Formula
C15H19N3O4
Molecular Structure
Category
Activity
Herbicide
Imazamox is readily absorbed by foliage and translocated throughout the plant. It is primarily an early post-emergence treatment, the optimum timing for applications being to weeds with 1-4 leaves. The product also has some residual activity. The active ingredient is sometimes formulated as the ammonium salt. Weeds die within 6 weeks of treatment. The use of crop-oil concentrates or surfactants is recommended as adjuvants for post-emergence applications.
CropUse
CropUses:
legumes, soybeans, peanuts, groundnuts, alfalfa, canola, lucerne, maize, wheat, canola, sunflowers, lentils

20-75 g ai/ha

 

Premix
imazamox+imazethapyr+sethoxydim
imazamox+imazethapyr
Imazamox+Bentazone

Water-dispersible granule (WG) ;Soluble concentrate (SL) ;Emulsifiable concentrate. 
Premix Parters: diuron; glyphosate; imazapic; imazethapyr;

Physical Properties
Molecular weight:305.3; Physical form:Odourless, off-white solid. Composition:Tech. is 93% pure. Melting point:166.0-166.7 °C ( tech.); Vapour pressure:<1.3 × 10-2 mPa; Partition coefficient(n-octanol and water):logP = -1.03 ( pH 5, uncorrected for dissociation), -2.4 ( pH 7, uncorrected), and 0.73 ( pH 5 & 6, corrected); Solubility:In water 4160 ppm (20 °C). In acetone 2.93 g/100 ml.; Stability:Stable to hydrolysis at pH 5, 7, and 9. DT50 for aqueous photodegradation 6.8 h.
Toxicology
Oral:Acute oral LD50 for male and female rats >5000 mg/ kg. Percutaneous:Acute percutaneous LD50 for male and female rats >4000 mg/kg. Slight skin irritant; moderate eye irritant (rabbits). Not a skin sensitiser (guinea pigs). Inhalation: LC50 (4 h) for rats >6.3 mg/l.
Environmental Profile

Ecotoxicology: 
Bees: LD50 (contact) >25 μg/bee.Birds:Acute oral LD50 (14 d) for bobwhite quail >1846 mg/ kg.Daphnia: NOEC 122 mg/l.Fish: LC50 (96 h) for rainbow trout 122 mg/l. 

Environmental fate: 
Animals:In rats, following oral administration, rapidly excreted in urine and faeces, mainly as unchanged parent.Soil:Degraded microbially; metabolites show moderate to strong binding potential; unlikely to leach.

Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)

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