Fentanyl Back Catalog number: 96500 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1048.25-K-IO n-Nonadecylcyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 22349-03-7 Price on request 53032 Calibration Standard Set Price on request 8577-K-W Triton X-114, 1000µg/mL, Solvent-water, Unit 1mL, # of units-1, Cas.no. Price on request