Total Residual Free Chlorine (Cl) Back Catalog number: 54224 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C10860000 Butachlor, 100mg Price on request 9075.9-K-IP 2,6-Dichlorosyringealdehyde, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 76330-06-8 Price on request 71392 1-Bromonaphthalene Price on request