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Home » Products » Pyrethroid
  • D-cyphenothrin


  • Description:
  • d-Cyphenothrin content:

    Min. 94%.


    Yellow viscous liquid.


    Max. 0.20%.

    Acidity (as H2SO4) :

    Max. 0.20%.

  • Description

Product name: d-Cyphenothrin
Other name: d-trans-cyphenothrin; Cyphenothrin.
Chemical name: (R,S)a-cyano-3-phenoxybenzyl-(1R)-cis,trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate
Chemical family: Synthetic Pyrethroids
CAS number: 39515-40-7
Molecular formula: C24H25NO3
Molecular weight: 375.47

Purity: 94% Min.
Appearance: Yellow viscous liquid.
Odour: Faint characteristic odour.
Boiling point: 154℃
Flash point: 130℃ (Pensky-Martens closed cup)
Density: 1.08 g/mL (25℃)
Vapor pressure: 0.116 mPa (20℃)
Viscosity: 3400 cps (20℃)
Ignition Temperature: 340℃
Octanol/Water Partition Coefficient: Log Pow = 6.29
Solubility: In hexane 4.84, methanol 9.27 (both in g/100g, 20℃). In water 9.01 ± 0.8 μg/L (25℃).
Stability: Stable for at least 2 years under normal storage conditions. Relatively stable to heat.

d-Cyphenothrin is pyrethrin insecticides. It has strong contact and stomach poisoning activity, good residual activity and a mild knock down against fly, mosquito, roach and other pests in public, industrial area and household. It has spectacular expelling action to big roach such as periplaneta fuliginosa and periplaneta Americana. It is better than permethrin, fenpropathrin, prallethrin and d-phenothrin in prevention of wool and furpests such as grain moth and achievies best in mosquito-repellent test by dipping mosquito net in liquids of d-cyphenothrin, permethrin, d-phenothrin, fenpropathrin and fenvalerate respectively.

Aerosols: The recommended dosages for use in aerosol are between 0.2% and 0.7%.
EC: 3% to 5% content can be formulated with propoxur, to control cockroach.

Acute toxicity:
Swallowed: LD50 (male rat) = 318 mg/kg; LD50 (female rat) = 419 mg/kg.
Skin: LD50 (rat) > 5000 mg/kg.
Inhalation: LC50 rat (3 hour) > 1.85 mg/L of air.
Eye irritancy: Slight irritating.
Skin irritancy: Non irritating.
Sensitisation: Non sensitising.
Long term toxicity: Non teratogenic, non mutagenic, non genotoxic, non carcinogenic.

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