UCMR4 - Method 525.3 - Surrogate Mix Back Catalog number: 98747 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9224 Benzo(a)pyrene Price on request 72217 Nifedipine Price on request 0711.10-K-IO Naphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 91-20-3 Price on request