Piperonyl butoxide Back Catalog number: 96221 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2377.10-K-IP 2-Naphthol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 135-19-3 Price on request 680801 DPOSA, 10.0 µg/ml, Methanol, 10ml Price on request 678304 Acetonitrile, 5ml Price on request