Piperonyl butoxide Back Catalog number: 94463 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90463 1,2,3-Trimethylbenzene Price on request EPA-533ES EPA Method 533 Isotope Dilution Standard PDS, 1.2ml, methanol Price on request 2077.6-K-IP 2,3,4-Trichlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 15950-66-0 Price on request