Total Residual Free Chlorine (Cl) Back Catalog number: 54124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0865.29-100-IO (20R,24R)-24-Ethyldiacholest-13(17)-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 99265-25-5 Price on request 70941 2-Propanol Price on request 1964.12-5MG 2,3',4,4'-Tetrabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 189084-61-5 Price on request