Piperonyl butoxide

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Chemical Identification | General Product Information | Physical & Safety Data

Chemical Identification

Common Name

Piperonyl butoxide

中文通用名

增效醚

IUPAC

5-[2-(2-butoxyethoxy)ethoxymethyl]-6-propyl-1,3-benzodioxole
or
2-(2-butoxyethoxy)ethyl 6-propylpiperonyl ether

CAS

5-[[2-(2-butoxyethoxy)ethoxy]methyl]-6-propyl-1,3-benzodioxole

CAS No.

51-03-6

Molecular Formula

C₁₉H₃₀O₅

Molecular Structure

General Product Information

Category

Insecticides > Physical insecticides

Activity

Synergist

Premix

PIPERONYL BUTOXIDE+PYRETHRINS
Piperonyl butoxide
Permethrin+Piperonyl butoxide+tetramethrin
Permethrin+Piperonyl butoxide
Permethrin+bioallethrin+Piperonyl butoxide
Lambda-cyhalothrin+Piperonyl butoxide+tetramethrin
Lambda-cyhalothrin+chlorpyrifos+Piperonyl butoxide
Deltamethrin+s-bioallethrin+Piperonyl butoxide
Cypermethrin+Piperonyl butoxide+tetramethrin
Cypermethrin+Piperonyl butoxide
Bioallethrin+Piperonyl butoxide+tetramethrin
Allethrin+cyfluthrin+Piperonyl butoxide
Dust, emulsifiable concentrate, fogger, paper coating, pressurized spray, solution, wettable powder.
Premix Parters: 2,4-D; simazine sodium chlorate sodium metaborate;

Physical & Safety Data

Physical Properties

Molecular weight:338.4; Physical form:Colourless liquid; ( tech. is a yellow oil). Density:1.060 (20 °C) (ENDQC-4 method); Composition:90% min. piperonyl butoxide. Flash point:140 °C (ASTM D93); Vapour pressure:2.0 × 10-2 mPa (60 °C) (gas saturation method); Henry constant:<2.3 × 10-6 Pa m3 mol-1 ( calc.); Partition coefficient(n-octanol and water):logP = 4.75; Solubility:In water 14.3 mg/l (25 °C). Soluble in all common organic solvents including mineral oils and fluorinated aliphatic hydrocarbons (aerosol propellants).; Stability:Essentially stable to hydrolysis at pH 5, 7 and 9 in sterile buffers in the dark at 25 °C. Rapidly degraded in aqueous solution ( pH 7) in sunlight (DT50 8.4 h).

Toxicology

Oral:Acute oral LD₅₀ for rats and rabbits c. 7500 mg/ kg. Percutaneous:Acute percutaneous LD₅₀ for rats >7950, rabbits 1880 mg/kg. Not irritant to eyes or skin; not a skin sensitiser. Inhalation: LC₅₀ for rats >5.9 mg/l.

Environmental Profile

Ecotoxicology:
Algae: EC₅₀ (cell volume) for Chlorella fusca 44µmol/l (Pestic. Sci., 47, 337 (1996)).Bees: LD₅₀ >25µg/bee.Birds:Acute oral LD₅₀ for bobwhite quail >2250 mg/ kg.Daphnia: LC₅₀ (24 h) 2.95 mg/l.Fish: LC₅₀ (24 h) for carp 5.3 mg/l.

Environmental fate:
Animals:In mammals (and also in insects), oxidative attack on the carbon atom of the methylenedioxy group leads to the formation of the dihydroxyphenyl compound. Oxidative degradation of the side-chain also occurs. Elimination is as the glucoside or amino acid deSoil: DT₅₀ for aerobic soil metabolism c. 14 d. K_oc 399-830. Although mobile in sandy soil, it is not expected to leach under outdoor conditions, where rapid degradation occurs.WATER SOLUBILITY: 14.3 mg/l at 25°C

Transport Information

Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)