| Customization: | Available |
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| CAS No.: | 121-29-9 |
| Formula: | C22h28o5 |
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Active ingredient
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Common name
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pyrethrin
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Chemical name
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[1R-[1a[S*(Z)],3b]]-2-methyl-4-oxo-3-(2,4-pentadienyl)cyclopenten-1-yl 2,
2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate; |
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CAS No
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121-21-1
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Molecular Formula
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pyrethrin I:; cinerin I: C20H28O3; jasmolin I: C21H30O3
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Pesticide category
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Insecticide
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Analytical method
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Products and extracts of flowers analysed by glc with FID (CIPAC
Handbook, 1985, 1C, 2209; ibid., 1998, H, 239; AOAC Methods, 17th Ed., 982.02*; D. B. McClellan, Anal. Methods Pestic. Plant Growth Regul., 1972, 6, 461; J. Sherma, ibid.ATXht0 , 1976, 8, 225); or by a titrimetric method (AOAC Methods, 17th Ed., 936.05). Residues determined by colorimetry or by glc(J. Sherma, loc. cit.; R. Mestres et al. , Ann. Falsif. Expert. Chim., 1979, 72, 577; W. Specht & M. Tillkes, Fresenius' Z. Anal. Chem., 1980, 301, 300). |
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Mode of Action
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Non-systemic insecticide with contact action. Causes rapid knockdown (caused
mainly by Pyrethrins II), with death occurring later (associated with Pyrethrins I). Has some acaricidal activity |
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Characteristics and Uses
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Control of a wide range of insects and mites in public health, stored products, animal
houses, and on domestic and farm animals. Control of chewing and sucking insects and spider mites on fruit, vegetables, field crops, ornamentals, glasshouse crops, and house plants.Also used as personal insect repellents and for human head lice control.Normally combined with synergists, e.g. piperonyl butoxide, which slows down detoxification by the insects. |
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Toxicity
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Oral Acute oral LD50 for male rats 2370, female rats 1030, mice 273-796 mg / kg .
Skin and eye Acute percutaneous LD50 for rats >1500, rabbits 5000 mg/kg. Slightly irritating to skin and eyes. Constituents of the flowers may cause dermatitis to sensitised individuals, but are removed during the preparation of refined extracts. Inhalation LC50 (4 h) for rats 3.4 mg /l. |
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Formulation
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Product name
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pyrethrum 2% extract
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Specifications
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Packaging
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For liquid formulations: 200L/drum, 25L/drum, 20L/drum, 5L/drum, 1L/bottle,
500ml/bottle, 250ml/bottle, 100ml/bottle, 50ml/bottle, For solid formulations: 25kg/drum or bag, 10kg/bag, 1kg/alu.bag, 500g/alu.bag, 250g/alu.bag, 100g/alu.bag, 50g/alu.bag or packing according to customers demand. |
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