Perchlorate Level 2 Back Catalog number: 59340 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72605 Trimethoprim Price on request 11208.16-50-ME 1H,1H,2H,2H-Perfluoro-n-dodecyl methacrylate,50 µg/mL,MeOH,1mL, Price on request 0191.4-1ML 2-Butanethiol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 513-53-1 Price on request