Total Residual Free Chlorine (Cl) Back Catalog number: 54224 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50612 Chloride 10 µg/mL (Cl-) Price on request 79231 Coronene Price on request 2639.27-5UG 17ß(H)-22,29,30-Trisnorhopane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 51271-94-4 Price on request