Total Residual Free Chlorine (Cl) Back Catalog number: 54124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2087.6-100MG 4-Nitrophenol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 100-02-7 Price on request 8591.6-100-IP 2,4,5-Tribromo-3,6-difluorophenol, 100µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. NA Price on request 675861 Pefloxacin mesylate dihydrate, 100mg Price on request