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Product Name: Azimsulfuron
Chemical Family: Sulfonylurea herbicide
Common Use: Agricultural herbicide for post-emergence weed control
Synonyms: N-(4,6-dimethoxypyrimidin-2-yl)-2-(3,4-dimethoxy-6-methyl-1,3,5-triazin-2-ylamino)benzenesulfonamide
CAS Number: 120162-55-2
Supplier Name: Consult product packaging
Emergency Telephone Number: Refer to local regulatory guidelines or package insert
Recommended Use Restrictions: For use in accordance with local agricultural regulations and label instructions
Classification: Eye irritation (Category 2), Skin sensitization (Category 1B)
Signal Word: Warning
Hazard Statements: Causes serious eye irritation, may cause an allergic skin reaction
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust, wear protective gloves and goggles, wash exposed skin thoroughly after handling, avoid contact with eyes and skin
Hazards Not Otherwise Classified: This product may form combustible dust concentrations in air
Effects of Overexposure: Eye redness, mild skin irritation, potential allergic response on repeated contact
Main Ingredient: Azimsulfuron (active ingredient) — 95-98%
Other Components: Inert ingredients and formulation aids — 2-5%
Impurities: Not expected to contribute to classification
Chemical Abstracts Service (CAS): Azimsulfuron (120162-55-2)
Molecular Formula: C13H16N8O5S
Molecular Weight: 412.38 g/mol
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, seek medical attention if irritation persists
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing and wash before reuse, seek medical advice if skin irritation occurs
Inhalation: Move person to fresh air, keep at rest in a comfortable position for breathing, get medical attention if symptoms develop
Ingestion: Rinse mouth, do not induce vomiting, drink water if able, consult a doctor if feeling unwell
Notes for Medical Personnel: Treat symptomatically, monitor respiratory and eye exposure symptoms
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Extinguishing Media: High-volume water jet
Hazardous Combustion Products: Emits toxic fumes under fire conditions, including carbon oxides, nitrogen oxides, sulfur oxides
Special Protective Equipment: Wear full protective gear and self-contained breathing apparatus for firefighting
Special Fire Procedures: Fight fire from upwind to avoid hazardous fumes, cool exposed containers with water spray
Explosion Data: Dust may form explosive mixture with air
Personal Precautions: Use personal protective equipment uncluding gloves and eye protection, avoid breathing dust
Emergency Procedures: Evacuate unprotected personnel, ventilate area
Environmental Precautions: Avoid runoff into waterways, contain spillage to prevent soil contamination
Methods for Clean-up: Sweep up spilled material without raising dust, place in labeled waste container for disposal, wash area with plenty of water while preventing runoff
Reference to Other Sections: For waste disposal see Section: Disposal Considerations
Precautions for Safe Handling: Operate with adequate local exhaust, avoid contact with eyes, skin, and clothing, do not eat, drink, or smoke while using this product, remove contaminated clothes and wash after handling
Conditions for Safe Storage: Store in original container, away from food and animal feed, keep container tightly closed in a dry, cool, well-ventilated space, protect from sunlight and moisture
Incompatibilities: Store away from strong acids, bases, and oxidizing agents
Specific End Use: Follow label recommendations for agricultural applications
Control Parameters: No occupational exposure limits established for Azimsulfuron
Engineering Controls: Use adequate local exhaust ventilation to minimize dust formation
Personal Protective Equipment: Chemical-resistant gloves, safety goggles or face shield, protective clothing to prevent skin contact
Respiratory Protection: Dust mask or respirator if dust exposure is possible
Hygiene Measures: Wash hands thoroughly after handling, wash contaminated clothing before reuse
Appearance: Off-white to beige crystalline solid
Odor: Odorless to faint chemical
Odor Threshold: Not determined
pH: 6.0–8.0 (1% aqueous solution)
Melting Point: 152–156°C
Boiling Point: Decomposes before boiling
Flash Point: Not flammable (solid)
Evaporation Rate: Not applicable
Flammability: Not considered flammable
Vapor Pressure: < 1 x 10-7 mmHg at 25°C
Vapor Density: Not applicable
Solubility: Water: 23 mg/L at 20°C ; soluble in most polar organic solvents
Partition Coefficient (Log Kow): 1.9
Auto-Ignition Temperature: No data available
Decomposition Temperature: >200°C
Viscosity: Not applicable
Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: No dangerous reactions known under normal conditions
Hazardous Reactions: No polymerization, thermal decomposition may produce toxic gases
Conditions to Avoid: Excess heat, open flame, direct sunlight, moisture
Incompatible Materials: Strong oxidizers, acids, bases
Decomposition Products: Nitrogen oxides, sulfur oxides, and carbon oxides
Acute Oral Toxicity: LD50 (rat, female): >5000 mg/kg
Acute Dermal Toxicity: LD50 (rat): >2000 mg/kg
Acute Inhalation Toxicity: LC50 (rat, 4h): >5.1 mg/L
Skin Irritation: Slightly irritating
Eye Irritation: Causes mild to moderate irritation
Respiratory Sensitization: Not reported
Skin Sensitization: May cause allergic skin reaction
Chronic Effects: Studies suggest no significant adverse effects at low exposure
Mutagenicity: Negative in standard test systems
Carcinogenicity: Not considered carcinogenic in animal studies
Reproductive Toxicity: No effects observed in standard reproductive studies
Ecotoxicity: Harmful to aquatic organisms — LC50 (fish, 96h): >100 mg/L; EC50 (daphnia, 48h): >100 mg/L; EC50 (algae): 0.016 mg/L
Persistence and Degradability: Not quickly biodegradable, some persistence in soil and water
Bioaccumulative Potential: Low (Log Kow 1.9)
Mobility in Soil: Moderate mobility, leaching possible in light soils
Other Adverse Effects: May disrupt aquatic plant growth, not toxic to birds or honeybees at field rates
Waste Treatment Methods: Collect and place waste product and packaging in approved disposal containers, send to an authorized chemical waste facility
Disposal of Product: Do not dump into sewer, keep out of surface water and groundwater
Disposal of Containers: Triple rinse and puncture containers before discarding, follow local and national regulations
Environmental Precautions: Avoid release to the environment outside application rates
UN Number: Not regulated for transport under most global conventions
Proper Shipping Name: Pesticide, non-regulated
Transport Hazard Class: Not classified as dangerous goods
Packing Group: None
Environmental Hazards: Not a marine pollutant under IMDG code
Special Precautions for User: Avoid contact with spilled material during transport, keep tightly closed
Regulatory Status: Approved herbicide in many countries; restrictions may apply according to local regulations
US EPA: Registered under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
EU Regulation: Classified under Regulation (EC) No 1272/2008 (CLP/GHS), subject to restrictions for water protection
Other Standards: Subject to workplace safety standards in Australia, Canada, Japan
Inventory Listings: Listed in major chemical inventories (TSCA, EINECS)
Specific Labeling Requirements: Signal words, precautionary statements, hazard pictograms, instructions for safe use as detailed in this MSDS
