Total Residual Free Chlorine (Cl) Back Catalog number: 59427 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3603.32-5UG 17ß(H),21 alpha(H)-(22RS)-Bishomohopane , neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. Price on request 676718 Serotonin hydrochloride, 100mg Price on request 676377 D-(+)-Turanose, 250mg Price on request