Surrogate Standard Back Catalog number: 96716 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8358.12-50-IO 5,5'-Difluoro-3,3',4,4'-tetrachlorobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 83555 4-Methyl-2-pentanone-DNPH Price on request 679430 13C6-Sulfadimethoxine, 10mg Price on request