Product Name

Piperonyl Butoxide

CAS No.

1951-3-6

Categories

 Pesticide Synergists

Chemical Structure

NOME NCLATURE

Common name: piperonyl butoxide; piperonyl butoxyde

IUPAC name: 5-[2-(2-butoxyethoxy)ethoxymethyl]-6-propyl-1,3-benzodioxole; 2-(2-butoxyethoxy)ethyl 6-propylpiperonyl ether

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

Other names: PBO

CAS RN: [51-03-6]

PHYSICAL CHEMISTRY

Composition: 95% min. piperonyl butoxide.

Mol. wt.: 338.4;

M.f.: C₁₉H₃₀O₅;

Form: Colourless liquid; (tech. is a slight yellowish liquid).

B.p.: 180C/1 mmHg (tech.)

V.p.: 2.0x10^-2 mPa (60C) (gas saturation method).

KOW: logP = 4.75;

Henry: <2.3x10^-6 Pa m³ mol^-1 (calc.)

S.g./density: 1.060 (20C) (ENDQC-4 method).

Solubility: In water 14.3 mg/l (25C). 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 25C. Rapidly degraded in aqueous solution (pH 7) in sunlight (DT₅₀ 8.4 h). F.p.: 140C (ASTM D93). Other properties Viscosity 40 cP (25C).

APPLICATIONS

Biochemistry: Inhibits mixed function oxidases (MFO) of the insect so that its natural detoxification system is blocked and the efficacy of applied insecticides is increased.

Uses: A synergist for the pyrethrins and related insecticides.

Formulation types: Aerosol; Emulsion; Oil.