Total Residual Free Chlorine (Cl) Back Catalog number: 59427 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2095.20-10MG Bis(2-n-butoxyethyl) phthalate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 117-83-9 Price on request 0307.23-200-T 6-Methylanthanthrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 31927-64-7 Price on request Q509495 Quercetin 3-O-ß-D Glucoside, 50mg Price on request