Agro-care Chemical Industry Group>>>Imazethapyr
Common Name: Imazethapyr
Chemical Name: (RS)-5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)nicotinic acid
CAS No.:



Molecular Formula: C15H19N3O3
Molecular Weight: 289.3
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.


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.


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.

Technical Purity: 95%Tech
Formulation Type: 80%WP,80%SP,80%WDG,70%WP,70%SP,70%WDG,10%SL
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