Chloride (Cl-) Back Catalog number: 50008 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2159.11-K-T Pentamethylbenzene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 700-12-9 Price on request 59629 Sulfate (SO42-) Price on request 1253.7-1ML trans-1,3-Dimethylcyclopentane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 1759-58-6 Price on request