Toxic Substances #1 Back Catalog number: 10014 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73264 4-Nitropyrene Price on request 2517.8-K-ME Caffeine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-08-2 Price on request 2591.32 Naphtho[8,1,2-hij]hexaphene, Please inquire, Solvent-, Unit , # of units-, Cas.no. 196-27-0 Price on request