Piperonyl butoxide Back Catalog number: 94463 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2581.28-5MG Dibenzo[h,rst]pentaphene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 192-47-2 Price on request 1526.24-50MG Coronene-d12,neat,neat,50mg, Price on request 2991.9-K-CY 2,3-Dimethylheptane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 3074-71-3 Price on request