See All ProductsImazapyr

Action

Herbicide

Use

Nonselective, imidazolinone herbicide applied preemergence or postemergence for long-term total vegetation control. Readily absorbed through foliage and roots. Controls grasses, broadleaf weeds, and woody species in noncrop areas such as railroad, utility, pipeline rights-of-way, utility plant sites, petroleum tank farms, pumping installations, fence rows, storage areas.

Identification

Common Name

Imazapyr (ISO-E draft, ISO-F, ISO)

Exp. Code Numbers

CL 252925 (American Cyanamid); AC 252925 (American Cyanamid)

CAS Code

81334-34-1

Chemistry

Compositions

2-[(RS)-4-isopropyl-4-methyl-5-oxo-2-imidazolin-2-yl]nicotinic acid (IUPAC); 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-pyridinecarboxylic acid (CAS)

Class

Imidazolinone.

Properties

Clear, slightly viscous, pale yellow to dark green aqueous liquid; slight ammonical odor.

Mode of Action / Resistance Management

Chemical Group

imidazolinone

Mode of Action

inhibition of acetolactate synthase ALS (acetohydoxyacid synthase AHAS)

Action Group

HRAC Group B; WSSA Group 2

Environmental Guidelines

Water Solubility

Tech: 15,000 ppm.

Safety Guidelines

Signal Word

CAUTION

Toxicity Class

III

Toxicity

(Rat): Oral LD50 5000 mg/kg. (Rabbit): Dermal LD50 >2148 mg/kg. Mild eye, skin irritation

Protective Clothing

Chemical-resistant apron when cleaning equipment, mixing, or loading. Chemical-resistant gloves.

Emergency Guidelines

Flashpoint

>98.9° C, 210°F (SCC)

Fire Extenguishing Media

Water, foam, dry chemical, or CO2. Alcohol foam is the recommended type of foam

First Aid

Get medical aid. Eyes: flush with plenty of water. Skin: wash with plenty of soap and water. Ingestion: drink 2 glasses of water; induce vomiting if person is conscious. Inhalation: remove to fresh air