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Product Name: Lambda-Cyhalothrin
Chemical Family: Pyrethroid insecticide
Formula: C23H19ClF3NO3
CAS Number: 91465-08-6
Common Trade Names: Karate, Icon, Matador
Recommended Use: Agricultural insecticide for the control of various pests on crops
Manufacturer Contact: Consult the product label or supplier for detailed company information and emergency phone numbers
Classification: Hazardous as per GHS classification
Hazard Statements: Toxic if swallowed; very toxic to aquatic life with long-lasting effects; may cause allergic skin reaction; may cause irritation to eyes and skin
Pictograms: Skull and crossbones, exclamation mark, environment
Precautionary Statements: Avoid breathing dust or spray; wash hands thoroughly after handling; use only outdoors or in a well-ventilated area; wear protective gloves and eye protection; collect spillage; avoid release to the environment
Active Ingredient: Lambda-Cyhalothrin 10-25%
Other Ingredients: Solvents, emulsifiers, stabilizers, trade secret components
Impurities: Typical impurities relate to manufacturing byproducts; consult analytical data from supplier for specifics
Synonyms: (RS)-alpha-cyano-3-phenoxybenzyl (1S,3S)-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate
Inhalation: Move to fresh air; monitor breathing; seek medical attention for persistent symptoms
Ingestion: Rinse mouth; drink water if conscious; do not induce vomiting; contact a poison center or doctor
Skin Contact: Remove contaminated clothing; rinse skin with soap and plenty of water; seek medical help if irritation develops
Eye Contact: Rinse eyes gently with water for at least 15 minutes; remove contact lenses if present; seek medical advice if irritation occurs
Symptom Advice: Symptoms can include numbness, tingling, convulsions, and breathing difficulty; medical observation suggested after significant exposure
Suitable Extinguishing Media: Use foam, dry chemical, or carbon dioxide; water spray for large fires
Hazardous Combustion Products: Potential for production of toxic fumes including hydrogen chloride, hydrogen fluoride, carbon monoxide
Protective Equipment: Self-contained breathing apparatus and chemical protective clothing recommended
Fire Fighting Instructions: Avoid runoff of contaminated firefighting water; keep containers cool with water spray; evacuate area if necessary
Explosion Hazard: Containers exposed to extreme heat can rupture; avoid static discharge
Personal Precautions: Wear protective clothing, gloves, goggles, and suitable respirator
Environmental Precautions: Prevent product from entering drains, waterways, and soil; contain spill with sand or earth
Cleanup Methods: Absorb spill with inert material like soil or sand, collect and place in suitable chemical waste containers; clean contaminated surface thoroughly
Disposal: Dispose of collected material according to local regulations; decontaminate tools and equipment after use
Handling: Use only with adequate ventilation; avoid breathing vapors, mists, and spray; avoid contact with skin, eyes, and clothing; do not eat, drink, or smoke when handling chemicals; wash hands after handling
Storage: Store in tightly sealed original containers in a cool, dry, well-ventilated area; segregate from food, drink, and animal feed; avoid exposure to sunlight and heat sources; keep out of reach of children
Incompatibilities: Strong acids, alkalis, and oxidizing agents
Special Storage Requirements: Store away from fertilizers, seeds, and pesticides with different hazard profiles
Exposure Limits: No specific occupational exposure limits established for Lambda-Cyhalothrin; use in accordance with best industrial hygiene practices
Engineering Controls: Use local exhaust ventilation to limit airborne concentrations
Personal Protective Equipment (PPE): Chemical-resistant gloves, protective clothing, eye protection (goggles or face shield), and in poorly ventilated areas a respirator suitable for organic vapor/mist
Environmental Controls: Do not allow to enter drains or water courses; containment measures required during application and clean-up
Appearance: Pale yellow or amber viscous liquid or crystalline solid (depending on formulation)
Odor: Slight characteristic chemical odor
pH: Typically neutral to slightly acidic in emulsifiable concentrates
Melting Point: 49-50°C (pure active ingredient)
Boiling Point: Decomposes before boiling
Vapor Pressure: 1.5 x 10⁻⁹ mm Hg at 20°C
Solubility: Low solubility in water (5 µg/L at 20°C); soluble in organic solvents
Density: 1.33 g/cm³ (technical grade)
Partition Coefficient (Log Kow): 7.0
Flash Point: Typically above 80°C for liquid formulations
Chemical Stability: Stable under normal conditions and recommended storage practices
Reactivity: Not reactive under normal handling; degrades over time with exposure to light, extreme pH, or elevated temperature
Incompatible Materials: Avoid contact with oxidizing agents, strong acids, and bases
Hazardous Decomposition: Can produce toxic fumes including hydrogen chloride, hydrogen fluoride, nitrogen oxides, and carbon monoxide on burning
Polymerization: No hazardous polymerization expected
Acute Toxicity: Oral LD50 (rat): 56 mg/kg; Dermal LD50 (rat): >2000 mg/kg; Inhalation LC50 (rat, 4h): >0.088 mg/L
Skin Irritation: May cause irritation; possible allergic reactions on repeated contact
Eye Irritation: Mildly irritating
Sensitization: May cause skin sensitization in sensitive individuals
Chronic Effects: No proven carcinogenic, mutagenic, or reproductive toxicity at workplace exposure levels; laboratory studies suggest neurotoxic potential after high or repeated dosing
Other Effects: Possible symptoms: tremors, skin sensation changes, headache, nausea, convulsions with severe exposure
Ecotoxicity: Highly toxic to fish (LC50 for trout: 0.00036 mg/L), aquatic invertebrates, and bees; persistent in the environment
Persistence and Degradability: Moderately persistent; photodegradation occurs in soil and water; binds strongly to soil particles
Bioaccumulation: High potential for bioaccumulation in aquatic organisms
Mobility in Soil: Low mobility due to strong adsorption to soil
Other Effects: May disrupt beneficial insect populations, including pollinators and natural pest predators
Product Disposal: Do not discard with household waste; incineration under controlled conditions at licensed facilities preferred
Container Disposal: Triple rinse empty containers and offer for reconditioning or puncture and dispose of in accordance with local regulations; never reuse contaminated containers for food or water
Environmental Avoidance: Prevent release to water bodies, sewer systems, or environment; follow regulatory guidance for hazardous waste
Spill Residue: Sweep up spilled solids or soaked absorbent and manage as hazardous waste
UN Number: 3352 (Pesticide, Liquid, Toxic, N.O.S.)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Proper Shipping Name: Pesticide, Liquid, Toxic, N.O.S. (Lambda-Cyhalothrin mixture)
Environmental Hazard: Marine Pollutant
Special Precautions: Handle containers with care; keep away from food and feedstuffs during transit; follow placarding and labeling regulations as required
U.S. Regulation: Registered under EPA FIFRA for use as an insecticide; subject to reporting requirements under TSCA and SARA Title III
EU Regulation: Approved under Regulation (EC) 1107/2009 for plant protection; classified under CLP Regulation as dangerous for the environment, toxic by ingestion
Label Requirements: Signal word: “Danger”; hazard pictograms and risk phrases for acute toxicity and environmental hazards
Restrictions: Use restricted to certified applicators in some jurisdictions; buffer zones and equipment cleaning guidelines enforced
Worker Protection: Compliance required with OSHA and local worker protection standards—including reentry periods and notification after application
International Listings: Status may vary by country; always consult local authorities for latest approvals and restrictions
