SoleChem

Piperonyl butoxide

CAS
51-03-6
EC
200-076-7
Mol. Weight
338.4 g/mol

Description

Piperonyl butoxide (CAS 51-03-6), commonly abbreviated as PBO, is a synergist used alongside insecticides to enhance their efficacy by inhibiting the enzymes insects use to break down active ingredients.

It does not function as a pesticide on its own but significantly boosts the performance of pyrethrin- and pyrethroid-based formulations, allowing lower active ingredient loadings for various applications.

In agricultural and public health pest control, PBO is incorporated into sprays, dusts, and aerosols to increase knockdown speed and residual activity of pyrethrins against a broad range of insects.

Home care products, including household insecticide sprays, mosquito coils, and foggers, rely on PBO to improve cost-efficiency while maintaining label claims for consumer safety and effectiveness.

In personal care, it appears in lice treatment formulations where it enhances the activity of permethrin or pyrethrin against head lice. Professional pest control operators also use PBO-containing concentrates.

These concentrates are used for structural treatments where insecticide resistance is a concern. Piperonyl butoxide is supplied as a liquid, typically in bulk drums or intermediate bulk containers.

Technical grade is the standard commercial form, with purity specifications commonly at 90–95% or higher. Refined grades meeting specific purity thresholds are available for pharmaceutical and personal care.

These refined grades are used where regulatory compliance requires tighter quality documentation. Our material is handled according to strict industrial protocols to ensure consistent performance in every batch.

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Physical Properties

Melting Point <25 °C
Boiling Point 180 °C @ Press: 1 Torr
Density 1.06 g/cm³ @ Temp: 20 °C
Flash Point >230 °F
Appearance Light Yellow Liquid
Color Clear yellow
Odor mild odor or odorless
Form Liquid
Water Solubility <0.1 g/100 mL at 18 ºC
Vapor Pressure 0.02 hPa (60 °C)
Refractive Index n 20/D 1.498(lit.)
Log P 4.750

Safety & Handling (Learn More)

Warning GHS07 GHS09 GHS08
Hazard Statements
H317 H317
H319 H319
H335 H335
H373 H373
H400 H400
H410 H410
Precautionary Statements
P260 P260
P261 P261
P271 P271
P272 P272
P273 P273
P280 P280
P319 P319
P321 P321
P391 P391
P405 P405
P501 P501
P264+P265 P264+P265
P302+P352 P302+P352
P304+P340 P304+P340
P333+P317 P333+P317
P337+P317 P337+P317
P362+P364 P362+P364
P403+P233 P403+P233
P305+P351+P338 P305+P351+P338

Trade & Regulatory

HS Code 29329990
UN Number 3082
ADR Class 9
Packing Group III
Storage Class 10 - Combustible liquids
WGK (Germany) 3

Documentation

Other Names

5-propyl-4-(2,5,8-trioxa-dodecyl)-1,3-benzodioxole|(butylcarbityl)(6-propylpiperonyl)ether|(3,4-methylenedioxy-6-propylbenzyl) (butyl) diethylene glycol ether|2-(2-butoxyethoxy)ethyl 6-propylpiperonyl ether|butyl carbitol 6-propylpiperonyl ether|alpha-[2-(2-butoxyethoxy)ethoxy]-4,5-(methylenedioxy)-2-propyltoluene|alpha-(2-(2-n-butoxyethoxy)-ethoxy)-4,5-methylenedioxy-2-propyltoluene|6-propylpiperonyl butyl diethylene glycol ether|PBO

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