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Home » Products » Pyrethroid
  • D-Allethrin


  • Description:
  • d-Allethrin content:

    Min. 93%.


    Pale yellow to amber viscous transparent liquid.


    Max. 0.20%.

    Acidity (as H2SO4) :

    Max. 0.20%.

  • Description

Product name: d-Allethrin
Other name: Pynamin Forte
Chemical name: (R,S)-3-allyl-2-methyl-4-oxo-cyclopent-2-enyl-(1R)-cis,trans-chrysanthemate
Chemical family: Synthetic Pyrethroids
CAS number: 231937-89-6
Molecular formula: C19H26O3
Molecular weight: 302.42

Purity: 93% Min.
Appearance: Pale yellow to amber viscous transparent liquid.
Odour: Faint characteristic odour.
Boiling point: 218.5℃
Flash point: 87℃(Pensky-Martens closed cup)
Density: 1.01 (20℃)
Vapor pressure: 0.165 mPa (21.6℃)
Octanol/Water Partition Coefficient: Log Pow = 4.95 (25℃)
Solubility: Easily soluble in organic solvents, such as methanol, hexane, xylene, acetone, carbon, tetrachloride, kerosene, petroleum. Solubility in water is 5.0 mg/L (30℃).
Stability: Can be stored over 2 years in normal condition, alkaline and ultraviolet radiation can drive it decompose.

d-Allethrin is used mainly for the control of flies and mosquitoes in the home, flying and crawing insects on farm, animals, and fleas and ticks on dogs and cats. It is formulated as aerosol, sprays, dusts, smoke coils and mats. It is used alonely or combined with synergists. It is also available in form of emulsifiable concentrates and wettable powders. Synergistic formulations (aerosols ordips) have been used on fruits and vegetables, post-harvest, in storage, and in processing plants. Post-harvest use on stored grain (surface treatment) has also been approved in some countries.

Mosquito coils: The recommended dosages for use in coils are between 0.1% to 0.3%.
Electric-thermal mats: 40 mg/mat with central temperature of heater at 150-165℃.
Aerosols: 0.1% to 0.2% active ingredients content in mixture with emulsifier synergist and lethal agent.

Acute toxicity:
Swallowed: LD50 (male rat) = 2150 mg/kg; LD50 (female rat) = 900 mg/kg.
Skin: LD50 (male rat) = 2660 mg/kg; LD50 (female rat) = 4390 mg/kg.
Inhalation: LC50 rat (4 hour) > 3.875 mg/L of air.
Eye irritancy: Slight irritating.
Skin irritancy: Non irritating.
Sensitisation: Non sensitising.
Long term toxicity: Non-teratogenic, non-mutagenic, non-carcinogenic, non-genotoxic.

d-Allethrin is supplied in the packaging described below:
PVF-lined Steel drums, standard size (net weight) -- 25 kg.