Air Spiking Standard Back Catalog number: 91564 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1632.9-25MG Cimetidine guanidine derivative (N-Methyl-N'-[2-[[(5-methyl-H-imidazol-4-yl)-methyl]-thiol]-ethyl]-guanidine dihydrochloride), neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 59660-24-1 Price on request 79533 Benzo(a)pyrene Price on request 1322.20-10-T 9-Fluorobenzo[k]fluoranthene, 10µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 113600-15-0 Price on request