Custom Calibration Standard Back Catalog number: 50254 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3539.11-K-IO Perhydrofluorene, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 5744-03-6 Price on request 680963 Imidazole, 250mg Price on request 94216 Pesticide/Biphenyl Standard Price on request