Sulfate (SO42-) Back Catalog number: 59429 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2193.8-50-ME Perfluorooctane sulfonic acid, potassium salt,50 µg/mL,MeOH,1mL, Price on request 2041.4-50-ME Perfluorobutane sulfonic acid, 50ug/ml, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 59933-66-3 Price on request 9140.12-1G N,N-Diethyl toluamide, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 134-62 Price on request