Custom Standard Back Catalog number: 50308 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2041.4-50-ME Perfluorobutane sulfonic acid, 50ug/ml, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 59933-66-3 Price on request 93818 Aroclor 1016 & 1260 Price on request 70852 Tetramethrin, 1000µg/ml in MeOH, 1ml Price on request