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Product Name: Cloransulam-Methyl
Chemical Name: Methyl 2-chloro-5-ethoxy-N-(2-ethoxy-6-methylphenyl)benzenesulfonamide
Synonyms: FirstRate, D35463
CAS Number: 147150-35-4
Manufacturer: Major agricultural chemical producers
Recommended Use: Selective post-emergence herbicide for weed management
Contact Information: See manufacturer MSDS for emergency contact and product inquiry numbers; available online and on the product label
Emergency Phone: National poison control resources and industrial response services provide numbers for exposure or spill management
Hazard Classification: Eye irritation, mild skin irritation, not considered highly toxic
Label Elements: Warning symbol, avoid inhalation and contact with skin or eyes
Acute Effects: Temporary eye redness or discomfort, minor skin reactions possible
Chronic Effects: Long-term usage and exposure data remain limited; no clear evidence of carcinogenic effects in available studies
Routes of Exposure: Inhalation, skin contact, ingestion, eye contact
Environmental Hazards: Can harm aquatic organisms in high concentrations; possible risk to some non-target plants
Active Ingredient: Cloransulam-Methyl 84-98%
Inert Ingredients: Surfactants, emulsifiers, minor solvents, stabilizers
Impurities: Trace organics dependent on formulation process
Concentration: Concentration may differ with product form—look for product data for precise information
Eye Contact: Rinse gently under running water for at least 15 minutes, lift upper and lower eyelids as needed, seek medical advice for persistent irritation
Skin Contact: Wash exposed area thoroughly with soap and water, remove contaminated clothing, call healthcare professional if redness or blistering develop
Inhalation: Move into fresh air, keep at rest, seek assistance if person feels unwell or experiences breathing difficulty
Ingestion: Rinse mouth, do not induce vomiting, obtain medical help; give water only if person remains alert
Suitable Extinguishing Media: Use water spray, carbon dioxide, dry chemical or foam to control fire
Fire Hazards: Not highly flammable, may produce hazardous gases like carbon monoxide, oxides of nitrogen, sulfur oxides and hydrogen chloride on combustion
Protective Equipment: Wear self-contained breathing apparatus and protective clothing designed for chemical fires
Special Procedures: Prevent runoff from entering waterways; move containers from fire zone if safe
Personal Precautions: Don chemical-resistant gloves, goggles, long sleeves, avoid dust or mist inhalation
Environmental Precautions: Keep spilled product from drains, sewers, and surface waters
Spill Cleanup: Collect with absorbent material or by scooping into properly labeled containers, thoroughly decontaminate area with water and detergent, dispose waste in compliance with local regulations
Handling: Wear protective clothing including gloves and eye protection, avoid eating, drinking, or smoking during use, prevent dust formation, always close containers tightly after use
Storage: Keep in tightly sealed original containers in a cool, dry, well-ventilated location, separate from food, feed, and out of reach of children and unauthorized personnel, store away from direct sunlight and sources of heat
Exposure Limits: No established occupational exposure limit for Cloransulam-Methyl; follow standard good practice for handling powdered chemicals
Engineering Controls: Utilize adequate ventilation, particularly in enclosed or confined spaces
Personal Protective Equipment: Use chemical-resistant gloves, safety goggles, protective overalls, NIOSH-approved dust masks for prolonged exposure
Hygiene Measures: Wash hands thoroughly after handling or before eating, keep work clothes separate from street clothing, clean contaminated equipment before reuse
Physical State: Solid at room temperature
Appearance: Off-white to light beige crystalline powder
Odor: Faint, characteristic organic odor
Melting Point: About 174–176°C
Boiling Point: Not applicable (decomposes before boiling)
Solubility in Water: Low (< 40 mg/L at 25°C)
Vapor Pressure: Very low (less than 1 x 10-7 mmHg at 25°C)
Density: 1.4–1.6 g/cm³
pH: Slightly acidic to neutral in dilute aqueous solutions
Chemical Stability: Remains stable under proper storage conditions, sensitive to strong acids or bases
Reactivity: Not reactive in normal use but may degrade with strong oxidizing or reducing agents
Hazardous Decomposition Products: Decomposition generates toxic fumes including nitrogen oxides, hydrogen chloride, and sulfur compounds
Polymerization: No risk of hazardous polymerization under normal conditions
Acute Oral Toxicity: LD50 for rats > 5000 mg/kg—very low acute toxicity
Acute Dermal Toxicity: LD50 for rabbits > 5000 mg/kg—very low skin toxicity
Inhalation Toxicity: Rat LC50 > 5 mg/L (4hr)—low risk from inhalation under routine handling
Skin/Eye Effects: Mild irritant in sensitive individuals; not a skin sensitizer
Chronic Effects: Animal studies show minimal risk; not mutagenic or carcinogenic at tested doses, reproductive toxicity not observed under ordinary use
Aquatic Toxicity: Toxic to algae and some aquatic plants; LC50 for fish and aquatic invertebrates > 100 mg/L, but chronic exposure poses risk
Soil Mobility: Moderately mobile in soil, binds to organic matter, breakdown rates depend on temperature and moisture
Persistence and Degradability: Breaks down slowly in soil, half-life between 7–34 days
Bioaccumulation: Low potential for buildup in fish or other organisms
Waste Methods: Collect product waste for incineration or landfill disposal, do not flush into water ways
Container Handling: Rinse containers thoroughly, triple rinse or use pressure rinse, dispose of packaging in accordance with local, state, and federal requirements
Precautions: Follow community, state, and national guidelines for agricultural chemical waste, never reuse empty containers
UN Number: Not classified as dangerous good for transportation by road, rail, air, or water
Transport Hazard Class: Not regulated
Packing Group: Not assigned
Shipping Name: Herbicide containing Cloransulam-Methyl
Special Precautions: Prevent spillage during transit, secure cargo to prevent movement or breakage, provide shipping documents describing contents
Safety, Health, and Environmental Regulations Specific for Substance: Registered as a pesticide by EPA, regulations apply for storage, transportation, use, and disposal
Labeling Requirements: EPA registration number and warning statements appear on product labels
Restrictions: Follow directions restricted to labeled crops and application rates, regulatory reviews ongoing in many countries
Community Right-to-Know: Subject to state and local reporting; not listed in major hazardous chemical inventories like SARA Title III Section 313
International Regulations: Review local listings for precise restrictions and safety rules
