Total Residual Free Chlorine (Cl) Back Catalog number: 54124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0313.21-200-T Dibenz[a,h]acridine, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 226-36-8 Price on request C695702 Corticosterone-d8 (Major), 5mg Price on request 677577 L-Valine, 250mg Price on request