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Pyrethrins with CAS 8003-34-7

what is of  Pyrethrins with CAS 8003-34-7?

Pyrethrins/Pyrethrum are natural insecticides produced by certain Chrysanthemum species of plants. In contrast, Permethrin (‘per-meth-rin’) is a synthetic, man-made insecticide, whose chemical structure is based on natural pyrethrum. Pyrethrum was first recognised as having insecticidal properties around 1800 in Asia and was used to kill ticks and various insects such as fleas and mosquitoes. Six individual chemicals have active insecticidal properties in the pyrethrum extract, and these compounds are called pyrethrins.

1.Quick details of  Pyrethrins with CAS 8003-34-7

Type:Herbal Extract
Extraction Type:Solvent Extraction
Place of Origin:Shandong, China
Grade:first grade
Product name:pyrethrin
Color:yellow liquid
CAS No.:8003-34-7
EINECS No.:232-319-8
Molecular weight:700.913
Molecular Formula:C43H56O8

2.Description of Pyrethrins with CAS 8003-34-7

density 0.84-0.86 g/cm3
vapor pressure 2.7×10-3 (pyrethrin I) and 5.3×10-5 (pyrethrin II) Pa
refractive index n20/D 1.45
Fp 75 °C
storage temp. 2-8°C
Water Solubility 0.2 (pyrethrin I) and 9 (pyrethrin II) mg l-1 (ambient temp.)
form neat


Pyrethrum is used to control a wide range of insects and mites in public health, stored products, animal houses and on domestic and farm animals. It is used on glasshouse crops but has relatively limited use on field crops, vegetables and fruit. It is normally used with synergists such as piperonyl butoxide which inhibits metabolic detoxification.


200kgs/drum, 16tons/20’container