Piperonyl butoxide, 1000µg/ml in MeOH, 1ml Back Catalog number: 71280 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10381.31-100-ME Norbuprenorphine 3-beta-D-glucuronide Price on request 79471 Phenol Price on request 1750.15-100-IO 2,4,6-Trimethyldibenzothiophene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 185493-79-7 Price on request