Total Residual Free Chlorine (Cl) Back Catalog number: 59427 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1545.13-K-IOX10 n-Tridecane-d28, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 121578-12-9 Price on request 9348.17-10MG Omeprazole Price on request 682030 D3-Sulfamethoxypyridazine, 10.0 µg/ml, Methanol, Price on request