WS PAH Calibration Level 4 Back Catalog number: 92605 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CLM-4590-MT-1.2 Mono-n-butyl phthalate (ring-1,2-13C2, dicarboxyl-13C2, 99%) 100 µg/mL in MTBE, 1,2ml Price on request 92639 MOE-PAH-3 Price on request 1418.9-1G 2-Isopropylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 88-69-7 Price on request