Chlorsulfuron

BP:   Agsin Pte. Ltd. (Lean*)
        CAC (Shanghai) International Trading Co., Ltd.
        DuPont Agricultural Products (Glean*, Telar*)
        Jiangsu Eternal Union Group Corp.
        Jingma Chemicals Ltd.
        Pilarquim Corp. (Pilargreen*)
        Probelte, S.A. (Uron*)
        Sanonda (Australia) Pty. Ltd. (Lasher*)
        Shenzhen Jiangshan Commerce & Industry Corp.
        Tide International Co., Ltd. (Tisufron*)
        Wangs Ltd. (Klors*)

Identification
COMMON NAME: Chlorsulfuron (ISO, ANSI, BSI, WSSA).
EXP. CODE NUMBERS: DPX 4189 (DuPont Agricultural Products).
OTHER CODE NUMBERS: CAS 64902-72-3; SHA 118601.
FORMULATORS' TRADE NAMES: Press* (AGRO-SAN Chemicals Industry and Trade Inc.).
DISCONTINUED NAMES: Almuron* (Agrolex Pte. Ltd.) • Trilixon* (+ methabenzthiazuron) (Bayer).

Chemistry
COMPOSITION: 2-chloro-N-[[(4-methoxy-6-methyl-l,3,5-triazin-2-yl) amino]carbonyl]benzenesulfonamide (CAS).
CLASS: Sulfonylurea.
PROPERTIES: Odorless, white, crystalline solid. Melting point 174-178°C. Slight solubility in methylene chloride, acetone, methanol, tol­uene, and hexane.
SOIL PROPERTIES: pKa is 3.6 (in water at 25°C) and KD value is 0.73, Flanagan silt loam (pH = 6.5, 4.02% organic matter).

Action/Use
ACTION: Herbicide.
USE: Selective control of most broadleaf weeds, annual ryegrass, in­cluding acreage enrolled in the Conservation Reserve Program (CRP). Pre- or postemergence to crop for some annual grasses in wheat, bar ley, durum, oats. Chlorsulfuron selective and nonselective for non­cropland. See Telar* label for detailed usage.
FORMULATIONS: Dry flowable. Fertilizer compatible formulations in U.S.
PREMIXES: Trilixon* (+ methabenzthiazuron) (Bayer) • Glean T* (+ methabenzthiazuron), Finesse* (+ metsulfuron-methyl) (DuPont Ag­ricultural Products).

Registration Notes
U.S.: For cereals (primarily wheat, barley, oats); see label for specific rotational options.
OUTSIDE U.S.: Glean* T is a mixture sold only in Europe with vari­ous other cereal herbicides.

Environmental Guidelines
SOLUBILITY: Water solubility 300-2800 ppm at 25°C, pH 5-7.

Safety Guidelines
SIGNAL WORD: CAUTION.
TOXICITY CLASS: IV.
TOXICITY: Tech (Rat): Oral LD50 5545mg/kg (male); Oral LD50 6293 mg/kg (female). (Rabbit): Dermal LD50 >3400 mg/kg.
HANDLING AND STORAGE CAUTIONS: Store in a cool, dry area. Wash hands before eating or smoking. Keep out of reach of children.
Do not contaminate water, food, or feed by storage or disposal. Keep from contact with fertilizers, insecticides, fungicides, and seeds during storage.