Product Specification: Flumethrin 92% TC

Product Name: Flumethrin 92% TC
Common Name: Flumethrin
Chemical Name: (RS)-α-cyano-4-fluoro-3-phenoxybenzyl (RS)-cis-trans-3-(β,4-dichlorostyryl)-2,2-dimethylcyclopropane-1-carboxylate
CAS Number: 69770-45-2
Molecular Formula: C₂₈H₂₂Cl₂FNO₃
Molecular Weight: 538.4 g/mol
Formulation Type: Technical Concentrate (TC)
Active Ingredient Content: ≥92.0% (by GC)

Description:

Flumethrin 92% TC is a technical-grade synthetic pyrethroid insecticide and acaricide widely used in veterinary applications, particularly for external parasite control in livestock such as cattle, sheep, goats, and dogs. It is also used in apiculture (beekeeping) to control varroa mites in honeybee hives. As a highly potent molecule, flumethrin acts through contact, providing quick knockdown and long-lasting residual activity against a broad spectrum of ectoparasites.

Flumethrin is particularly effective against ticks, lice, mites, fleas, and flies. It is commonly used to formulate pour-on solutions, dips, spot-on treatments, collars, and impregnated strips. Its low toxicity to mammals and excellent photostability make it an ideal active for veterinary and apicultural uses.

Physical and Chemical Properties:

• Appearance: Pale yellow to brown viscous liquid or semi-solid

• Odor: Faint aromatic or ester-like odor

• Density (20°C): ~1.25 g/cm³

• Melting Point: 20–24°C (semi-solid at room temperature)

• Boiling Point: Decomposes before boiling

• Vapor Pressure: Very low (<1.3 × 10⁻⁷ Pa at 20°C)

• Solubility: Practically insoluble in water (<2 µg/L at 20°C); soluble in organic solvents such as xylene, acetone, and ethanol

• Stability: Stable under recommended storage conditions; decomposes at high temperatures

Specification Parameters:

• Flumethrin Content: ≥92.0%

• Impurities: ≤8.0%

• Water Content: ≤0.5%

• Acidity (as H₂SO₄): ≤0.3%

• Appearance: Clear to slightly hazy, viscous liquid or semi-solid

Applications:

Target Pests:

• Ticks (Rhipicephalus, Boophilus, Ixodes)

• Lice (Haematopinus, Linognathus)

• Mites (Sarcoptes, Varroa destructor)

• Fleas and flies in livestock environments

Formulated Product Uses:

• Veterinary pour-ons and sprays

• Dips for sheep and cattle

• Spot-on solutions for pets

• Insecticidal ear tags and collars

• Varroa control strips for beehives

Use Areas:

• Livestock farms (cattle, sheep, goats)

• Pet care (dogs, cats)

• Beekeeping (honeybee mite control)

Mode of Action:

Flumethrin affects the sodium channels of nerve cells in arthropods, prolonging their open state. This leads to hyperexcitation of the nervous system, followed by paralysis and death. It acts primarily via contact and is not systemic. The compound's high lipophilicity allows for strong adhesion to animal hair and skin, providing persistent protection.

Toxicological Profile:

• Oral LD₅₀ (rat): >5000 mg/kg (very low toxicity)

• Dermal LD₅₀ (rat): >2000 mg/kg

• Inhalation LC₅₀ (rat, 4h): >2.2 mg/L

• Skin Irritation: Slightly irritating

• Eye Irritation: Non-irritating

• Sensitization: Non-sensitizing

• Ecotoxicity: Toxic to aquatic organisms and bees; safe for treated hives under controlled conditions

Packaging and Storage:

• Standard Packaging: 25 kg or 50 kg HDPE drums or as per customer requirements

• Storage: Store in a cool, dry, well-ventilated place away from heat, sparks, and direct sunlight

• Shelf Life: Minimum 2 years in original unopened packaging under proper storage conditions

Flumethrin 92% TC is a reliable active for high-efficacy pest control in veterinary and beekeeping applications, balancing strong performance with low mammalian toxicity. Let me know if you need the formulation data, SDS, or regulatory support documentation.