See All ProductsHalosulfuron-methyl

Action

Herbicide

Use

Annual broadleaf weeds and sedges in corn, grain sorghum, sugarcane, rice, turf.

Formulation

Dry flowable, some are premeasured amounts in water soluble bags; water soluble granule.

Identification

Common Names

Halosulfuron-methyl (BSI, ISO); Halosulfuron (ISO)

Exp. Code Numbers

MON 12000 (Monsanto Co.); NC-319 (Nissan Chemical Industries, Ltd.)

CAS Codes

100784-20-1; 135397-30-7 (Halosulfuron)

Chemistry

Compositions

methyl 3-chloro-5-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-1-methyl-1H-pyrazole-4-carboxylate (IUPAC); methyl 3-chloro-5-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-1H-pyrazole-4-carboxylate (CAS)

Class

Sulfonylurea.

Properties

Odorless, white, crystalline solid. Melting range 175.5°-177.2°C. Soluble in methylene chloride, dioxane. Slightly soluble in methanol, toluene.

Mode of Action / Resistance Management

Chemical Group

sulfonylurea

Mode of Action

inhibition of acetolactate synthase ALS (acetohydoxyacid synthase AHAS)

Action Group

HRAC Group B; WSSA Group 2

Environmental Guidelines

Water Solubility

15 ppm at pH 5, 1,630 ppm at pH 7

Safety Guidelines

Signal Word

CAUTION

Toxicity Class

III

Toxicity

Tech: (Rat): LD50 8860 mg/kg.

Handling/Storage Caution

Stable when excess moisture or humidity are excluded from container

Protective Clothing

Long-sleeved shirt and long pants. Shoes plus socks.

Emergency Guidelines

First Aid

Get medical aid. Eyes: flush immediately with plenty of water. Skin: wash thoroughly with soap and water. Ingestion: remove visible particles from mouth and rinse and spit with water, then swallow clean water to dilute