Imazapyr

Synonyms

2-(4,5-Dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl)-3-pyridinecarboxylic acid; 2-(4-Isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl)nicotinic acid; AC 243,997; Arsenal; Arsenal 250A; Chopper; [ChemIDplus]

Category

Herbicides, Imidazolinone

Description

White to tan powder; Aqueous solution: clear pale yellow to dark green liquid; [HSDB]

Sources/Uses

Used as non-selective, pre- and post-emergent herbicide applied as either the acid or isopropylamine salt; Registered for use on corn, grass, and a variety of commercial and residential use sites; [Reference #1]

Comments

The imidazolinones are not reproductive or developmental toxins and lack genotoxic and carcinogenic potential; They are relatively nontoxic in acute toxicity testing; [Krieger, p. 1853-63] An eye irritant; [MSDSonline] See "Imazapyr isopropylamine salt."

Reference Link #1

Biomedical References

1.79E-11 mm Hg

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)