Product Specification: Tetramethrin 95% TC (Technical Concentrate) – Liquid

Product Name: Tetramethrin 95% TC
Chemical Name: (1RS,3RS;1RS,3SR)-2,2-Dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid (1,3,4,5,6,7-hexahydro-1,3-dimethyl-4-oxo-2H-isoindol-2-yl)methyl ester
CAS Number: 7696-12-0
Molecular Formula: C₁₉H₂₅NO₄
Molecular Weight: 331.41 g/mol
Formulation Type: Technical Concentrate (TC), Liquid
Active Ingredient Content: ≥95.0% (by GC)

Description

Tetramethrin 95% TC is a technical-grade synthetic pyrethroid concentrate used primarily in the production of household and public health insecticides. This product is formulated as a liquid, making it especially suitable for use in aerosol sprays, vaporizer liquids, and other oil-based applications.

Tetramethrin is renowned for its rapid knockdown action against flying insects such as mosquitoes, houseflies, and moths. It interferes with the insect nervous system by prolonging sodium channel activation, leading to hyperexcitation, paralysis, and eventual death. Due to its fast-acting properties and relatively low mammalian toxicity, Tetramethrin is widely used in indoor pest control products.

Physical and Chemical Properties

• Appearance: Clear, pale yellow to amber liquid

• Odor: Slight characteristic odor

• Boiling Point: Decomposes before boiling

• Melting Point: Not applicable (liquid form)

• Density (at 20°C): 1.03–1.08 g/cm³

• Flash Point: >80°C (Closed Cup)

• Solubility:

  • Practically insoluble in water

  • Readily soluble in organic solvents such as xylene, acetone, and ethanol

• Stability: Stable under normal storage; light and heat-sensitive

Specification Parameters

Mode of Action

Tetramethrin acts on the voltage-gated sodium channels in insect nerve cells, causing prolonged depolarization. This overstimulation results in rapid knockdown and paralysis of the pest. It works primarily through contact and inhalation, providing immediate effects against insects in enclosed spaces.

Applications

• Public Health Pest Control:

  • Used in formulations for aerosol sprays, fogging agents, mosquito coils, and electric vaporizers.

  • Effective against mosquitoes, flies, gnats, moths, and other nuisance insects.

• Domestic Use:

  • Incorporated into household insecticide sprays, indoor foggers, and liquid vaporizers.

• Formulation Compatibility:

  • Compatible with other pyrethroids (e.g., d-phenothrin, prallethrin) and synergists such as PBO (piperonyl butoxide) for enhanced performance.

Toxicological Profile

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

• Dermal LD₅₀ (rat): >2000 mg/kg

• Irritation: Mild skin and eye irritant

• Environmental Impact: Toxic to aquatic organisms; precautions must be taken to avoid contamination of water bodies.

Packaging and Storage

• Packaging: HDPE drums, fluorinated containers, or aluminum bottles (25 kg, 50 kg, 200 kg).

• Storage Conditions: Store in a cool, dry, well-ventilated area away from direct sunlight and heat.

• Shelf Life: Minimum 2 years under recommended conditions.

Safety and Handling

• Use personal protective equipment (PPE) when handling.

• Avoid inhalation, skin contact, and eye exposure.

• In case of spill, use inert absorbent materials and dispose of according to local regulations.

Conclusion

Tetramethrin 95% TC Liquid is a premium-grade technical concentrate offering fast knockdown action against flying insects. It is ideal for use in public health and household insecticidal formulations due to its effectiveness, safety, and compatibility with other actives.