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Chemical Name: Quizalofop-P-ethyl
Common Names: Assure II, Targa
CAS Number: 100646-51-3
Product Use: Post-emergence herbicide for control of annual and perennial grass weeds
Supplier: Major agrochemical companies, used globally in crop production, especially soybeans and sugar beets
Emergency Contact: Refer to local poison control center or emergency response center, contact details provided by supplier on package
Classification: Harmful if inhaled, causes moderate eye irritation, suspected of causing cancer (IARC 2B), toxic to aquatic organisms
Hazard Statements: May be harmful if swallowed or absorbed through skin, prolongs exposure may cause organ damage, avoid breathing vapors, wear eye protection
Precautionary Statements: Avoid release to environment, wash hands thoroughly after handling, do not eat or drink when using this product, store away from food and feed
Symbols: Exclamation mark, environment
Signal Word: Warning
Active Ingredient: Quizalofop-P-ethyl — 10-20%
Chemical Family: Aryloxyphenoxypropionate herbicide
Other Ingredients: Hydrocarbons, surfactants, inert solvents — 80-90%
Impurities: Traces of ethylbenzene, possible aromatic hydrocarbons
If inhaled: Get person to fresh air, keep at rest, seek medical attention if symptoms continue
If on skin: Remove contaminated clothing, rinse skin with plenty of water, wash thoroughly with soap
If in eyes: Rinse immediately with plenty of water for at least 15 minutes, remove contact lenses if present and easy, seek medical attention if irritation occurs
If swallowed: Rinse mouth, do not induce vomiting, call a doctor or poison control
Important symptoms/effects: Nausea, dizziness, eye redness, respiratory discomfort
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, water spray
Unsuitable Media: Do not direct a jet of water
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, nitrogen oxides, toxic fumes
Protective Equipment for Firefighters: Full protective clothing, self-contained breathing apparatus
Additional Advice: Containers exposed to fire may burst, prevent contaminated water from entering drains or water sources
Personal Precautions: Wear protective gloves, chemical goggles, long-sleeved clothing, avoid inhalation
Environmental Precautions: Prevent spill from entering drains or watercourses, contain spill with earth or sand, notify authorities of significant release
Methods for Clean Up: Absorb spillage with non-combustible absorbent materials, shovel into container for disposal, rinse contaminated area with water
Decontamination: Vigorously wash area with detergent and water after removal of material, dispose of all materials according to local regulations
Handling: Use in well-ventilated areas, avoid contact with eyes and skin, wear protective equipment, handle away from food and feed
Storage: Store in original labeled container, tightly closed, in a cool, dry, well-ventilated area, away from direct sunlight and incompatible materials such as strong oxidizing agents
Incompatibility: Avoid contact with acids, bases, strong oxidizers, do not reuse container
Other Precautions: Keep away from children and unauthorized personnel, always follow safety instructions
Occupational Exposure Limits: No specific OSHA PEL or ACGIH TLV established, minimize exposure to vapors and dust
Engineering Controls: Use local exhaust ventilation if available, ensure adequate air exchange
Personal Protective Equipment: Protective gloves (chemical-resistant), safety goggles, long-sleeved protective clothing, respirator if ventilation inadequate
Hygiene Measures: Wash hands, face, and exposed skin thoroughly after handling, do not eat, drink, or smoke during use
Appearance: Light yellow to amber liquid
Odor: Aromatic hydrocarbon smell
Odor Threshold: Not determined
pH: 6-8 (emulsion)
Melting Point: Not applicable
Boiling Point: Decomposes before boiling
Flash Point: 68°C (closed cup)
Evaporation Rate: No data available
Flammability: Combustible liquid
Vapor Pressure: Low, less than 1 x 10⁻⁶ mmHg at 20°C for the pure compound
Solubility: Practically insoluble in water, soluble in common organic solvents
Partition Coefficient (log Kow): 4.5-5
Density: 1.08-1.12 g/cm³ (@ 20°C)
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: No dangerous reactivity under prescribed use
Conditions to Avoid: Excessive heat, direct sunlight, strong acids and bases
Materials to Avoid: Oxidizing agents, strong alkalis
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, toxic fumes, nitrogen oxides
Acute Toxicity: Oral LD50 (rat): 1,273-3,000 mg/kg; Dermal LD50 (rat): >2,000 mg/kg; Inhalation LC50 (rat, 4hr): 5.8 mg/l
Irritation: Moderately irritating to eyes, slight skin irritation
Sensitization: Not a skin sensitizer
Chronic Effects: Prolonged exposure causes liver and kidney changes in animals
Mutagenicity: Evidence of mutagenicity is limited, some positive results in in-vitro tests
Carcinogenicity: Group 2B (possibly carcinogenic, based on animal studies)
Reproductive Toxicity: No evidence of teratogenicity at expected exposure levels
Specific Target Organ Toxicity: Can affect liver and blood with repeated exposure
Toxicity to Aquatic Life: Very toxic to aquatic organisms, LC50 (96 h, rainbow trout) 0.4 mg/l
Toxicity to Birds: Practically non-toxic to birds (LD50 >2,250 mg/kg for mallard duck)
Persistence and Degradability: Moderately persistent, soil half-life ranges from 5 to 40 days under field conditions
Bioaccumulation Potential: High, log Kow above 4
Mobility in Soil: Low mobility, adsorbs to organic matter, risk of surface water run-off
Other Hazards: Harmful to non-target plants by drift, risk to bees is low under field conditions
Waste Disposal Methods: Dispose of in accordance with local, regional, national regulations, incinerate or landfill in approved facilities
Container Disposal: Triple or pressure rinse empty container, offer for recycling if available, do not reuse container
Special Precautions: Do not allow material to contaminate ground or surface water, ditches, or sewers during disposal
UN Number: 3082
Proper Shipping Name: Environmentally hazardous substance, liquid, n.o.s. (contains Quizalofop-P-ethyl)
Transport Hazard Class: 9 (Miscellaneous dangerous substances)
Packing Group: III
Labels: Environmentally hazardous, miscellaneous
Marine Pollutant: Yes
Special Precautions: Keep containers upright and well secured, segregate from food and feedstuffs
EPA Registration: Listed for use on several crops, follow label directions
EU Classification: Approved under Regulation (EC) No 1107/2009 with restrictions
OSHA Classification: Hazardous chemical
TSCA Status: All components listed
Other Regulations: Subject to SARA Title III reporting, IARC 2B classification, reach compliance required in European Economic Area
