Calibration Standard Set Back Catalog number: 53032 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9179.12-K-ME (±)-Norketamine hydrochloride,1000 µg base/mL,MeOH,1mL Price on request 11719.12-100-IO 2,2',4,5,6'-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 33711 2-Methylhexane Price on request