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Product Name: Cypermethrin
Chemical Formula: C22H19Cl2NO3
Synonyms: Alpha-cyano-3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
CAS Number: 52315-07-8
Intended Use: Insecticide for agricultural, industrial, and domestic pest control
Manufacturer: Contact manufacturer for details
Emergency Contact: Refer to local Poison Control Center
Recommended Restrictions: Professional use only, not approved for direct application to humans or animals
GHS Classification: Acute Toxicity (Oral) Category 3, Acute Toxicity (Dermal) Category 4, Acute Toxicity (Inhalation) Category 4, Skin Sensitization Category 1, Aquatic Acute Toxicity Category 1, Aquatic Chronic Toxicity Category 1
Label Elements: Skull and crossbones, Environment
Hazard Statements: Toxic if swallowed, Causes skin irritation, May cause an allergic skin reaction, Harmful if inhaled, Very toxic to aquatic life with long lasting effects
Precautionary Statements: Avoid breathing dust or vapor, Wear protective gloves and eye/face protection, Wash hands thoroughly after handling, Avoid release to the environment
Signal Word: Danger
Symptoms of Exposure: Tingling or numbness (paresthesia), skin irritation, coughing, headaches, nausea, dizziness, respiratory distress, in severe cases seizures
Substance: Cypermethrin
Concentration: 95% w/w
Impurities: Solvents, Isomers, Stabilizers (less than 5%)
Other Ingredients: Inert carriers, specific content varies by source, check supplier certificate for trace components
Molecular Weight: 416.3 g/mol
Inhalation: Move affected person to fresh air, provide artificial respiration if breathing stops, seek medical advice soon after exposure
Skin Contact: Remove contaminated clothing, wash skin with soap and cool water, rinse thoroughly, medical evaluation advised
Eye Contact: Rinse eyes cautiously with water for several minutes, remove contact lenses if present and easy to do, keep rinsing
Ingestion: Do not induce vomiting, rinse mouth with water, never give anything by mouth to an unconscious person, get emergency medical attention
Note to Physician: Treat symptomatically, monitor for respiratory or neurological symptoms, no specific antidote exists, symptomatic and supportive therapy recommended
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, water fog (avoid strong water jets)
Unsuitable Extinguishing Media: High pressure water streams may spread the chemical
Fire-Fighting Instructions: Use self-contained breathing apparatus and full protective gear, cool containers exposed to fire with water spray
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, hydrogen chloride, nitrogen oxides, toxic smoke/fumes
Specific Hazards: Vapors may form explosive mixtures with air in confined or unventilated areas
Explosion Sensitivity: Dusts can present an explosion hazard in certain conditions
Decomposition: Fumes generated can be irritating or toxic
Personal Precautions: Evacuate area, don appropriate protective equipment, avoid breathing dust or vapor, avoid skin and eye contact
Environmental Precautions: Prevent entry into sewers, surface waters, or soil; notify relevant authorities if larger spill threatens environment
Containment Methods: Absorb spilled material using sand, earth, or inert absorbent. Collect for disposal in labeled containers
Cleanup Procedures: Avoid raising dust, ventilate area, dispose of collected materials in accordance with local regulation, clean area thoroughly with water and detergent
Handling: Work in well-ventilated spaces, avoid contact with skin, eyes, and clothing, do not eat, drink, or smoke during use, follow safety protocols for handling pesticides
Storage Conditions: Store in original tightly closed container, keep out of reach of children, avoid direct sunlight, heat, sparks or open flames, maintain temperature below 40°C as practical
Incompatibilities: Strong oxidizers, strong acids, alkalis
Restrictions: Store away from animal feed, food, or water supplies, never reuse container for any purpose, lock up in secure location
Exposure Limits: No specific occupational exposure limits established, minimize exposure as much as possible
Engineering Controls: Local exhaust ventilation or enclosure suggested in dusty conditions
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), protective clothing (long sleeves, pants), safety goggles or face shield, NIOSH/MSHA-approved organic vapor respirator if spray mists or dust may be inhaled
Hygiene Measures: Wash hands after handling, launder work clothes regularly, remove contaminated clothing immediately
Form: Crystalline solid, technical product appears as pale brown or yellowish powder
Odor: Slight aromatic
Melting Point: 60 – 80°C
Boiling Point: Decomposes before boiling
Vapor Pressure: 1.5 x 10⁻⁷ mmHg at 25°C
Solubility: Insoluble in water (less than 10 µg/L), soluble in organic solvents such as acetone, xylene, hexane
Density: 1.1 g/cm³
Partition Coefficient (log Kow): 5.5 – 6.2
pH: Stable between 5 – 9
Chemical Stability: Stable under recommended storage conditions
Reactivity: Not highly reactive under normal handling
Conditions to Avoid: Excessive heat, open flames, sources of ignition, prolonged exposure to light
Incompatible Materials: Oxidizing agents, alkaline materials, acids
Hazardous Decomposition Products: Toxic gases including carbon monoxide, carbon dioxide, hydrogen chloride, nitrogen oxides produced during fire or decomposition
Polymerization: Will not occur under normal storage and handling
Acute Toxicity: Oral LD50 (rat): 250–415 mg/kg, Dermal LD50 (rat): >1600 mg/kg, Inhalation LC50 (rat, 4h): 2.5 mg/L
Skin Corrosion/Irritation: Causes mild to moderate irritation
Serious Eye Damage/Irritation: Possible transient irritation
Respiratory Sensitization: No reliable animal data, irritation possible
Skin Sensitization: Potential to cause allergic reactions with repeated contact
Chronic Effects: Animal studies show reversible neurological effects, liver changes at high doses, no evidence of carcinogenicity
Other Information: Not mutagenic in most test systems, does not bioaccumulate in mammals due to rapid metabolism and excretion
Toxicity to Fish: Highly toxic to aquatic organisms, e.g., 96h LC50 (rainbow trout): 0.00068 mg/L
Toxicity to Aquatic Invertebrates: Extremely toxic, 48h EC50 (Daphnia magna): 0.0001–0.0004 mg/L
Toxicity to Birds: LD50 (mallard duck): >2500 mg/kg
Toxicity to Bees: Highly toxic, contact LD50: 0.03 µg/bee
Persistence and Degradability: Degrades slowly in soil, half-life 30 to 60 days, more rapid breakdown with sun and high humidity
Bioaccumulation Potential: Significant in aquatic systems due to high log Kow
Mobility in Soil: Low, tends to adsorb strongly to soil particles, minimal groundwater risk under normal use
Disposal Methods: Collect waste in labeled, sealed containers; dispose via licensed hazardous waste facility
Contaminated Packaging: Triple rinse containers, render unfit for reuse, puncture and dispose as hazardous chemical waste
Environmental Caution: Never dispose to drains, water bodies, or open soil
Incineration: Viable for bulk waste under controlled conditions
Regulatory Compliance: Follow national and local hazardous waste and pesticide disposal regulations
UN Number: UN 3077
Shipping Name: Environmentally hazardous substance, solid, n.o.s. (contains cypermethrin)
Hazard Class: 9 (Miscellaneous dangerous substances and articles)
Packing Group: III
Marine Pollutant: Yes
Transport Precautions: Avoid release during shipment, use leak-proof containers, keep separate from food, feed, and incompatible materials, follow relevant ADR, IMDG, IATA instructions
Transport Labeling: Environmental Hazard
EU Regulation: Listed in Annex III of Regulation (EC) No 1107/2009 as an approved plant protection product active substance
US Regulation: Registered under FIFRA, subject to EPA regulation
International Status: Included in Rotterdam Convention Prior Informed Consent list, subject to specific import/export controls
SARA Title III/EPCRA: Not listed as an extremely hazardous substance, reportable quantities depend on state regulations
Other Local Regulations: Dispose and use only as allowed under local, state, and national pesticide laws, safety measures may vary by region
