Sodium Sulfate (SO42-) Back Catalog number: 50037 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3423.7-100 Ioxynil, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1689-83-4 Price on request I140004 Ibuprofen-13C,d3, 1mg Price on request 66141 PCB No. 141, 100µg/ml in Isooctane, 1ml Price on request