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Common Name: |
Imazethapyr
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Chemical Name: |
(RS)-5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)nicotinic
acid
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CAS No.: |
81335-77-5
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Structure: |
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Molecular Formula: |
C15H19N3O3
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Molecular Weight: |
289.3
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Physical Chemistry: |
Technical imazethapyr is an off-white to tan solid with a slightly
pungent odor.Water Solubility: (distilled) 0.14 g/ml at 25 degrees C.Solubility
in Other Solvents: Soluble in dimethyl sulfoxide, methanol,
methylene chloride; moderately soluble in acetone and 2-propanol;
slightly soluble in toluene; very slightly soluble in heptane.Melting
Point: 169 to 173 degrees C.Vapor
Pressure: <1 x 10 to the minus 7 mmHg at 60 degrees C.
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Toxicity: |
The acute oral LD50 for technical imazethapyr was reported to be
>5000 mg/kg for rats. The acute inhalation LC50 for rats exposed to
imazethapyr is 3.27 mg/L. The dermal LD50 for rabbits exposed to
technical imazethapyr was >2000 mg/kg. It was found to be slightly
irritating to the rabbit eye, with complete recovery in 7 days. The
technical material was found to be slightly irritating to the skin
of male rabbits.
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Application: |
Imazethapyr is an imidazole compound used as
a selective herbicide. It is applied preplant incorporated,
preemergence, at cracking, and postemergence. The compound controls
weeds by reducing the levels of three branched-chain aliphatic amino
acids, isoleucine, leucine and valine, through the inhibition of
aceto-hydroxyacid synthase, an enzyme common to the biosynthetic
pathway for these amino acids. This inhibition causes a disruption
in protein synthesis which, in turn, leads to an interference in DNA
synthesis and cell growth.
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Technical Purity: |
95%Tech
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Formulation Type: |
80%WP,80%SP,80%WDG,70%WP,70%SP,70%WDG,10%SL
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