Norfentanyl hydrochloride Back Catalog number: 96502 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2850.10-50-ME 1H,1H-Perfluoro-3,7-dimethyloctan-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 232587-50-7 Price on request 31005 EPA Method 502/524 Fortification Solution Price on request 8842.7-K-IO 2-n-Propylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request