QC Standard 4 Back Catalog number: 52087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 20052 CLP Semi-Volatiles - PAH Calibration Mix Price on request 0411.40-150-CY n-Tetracontane, ?13C: -27.05, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 4181-95-7 Price on request 680364 4-Aminoazobenzene, 100 µg/ml, Acetonitrile, 1ml Price on request