EPA Method 507 Surrogate Standard Back Catalog number: 19049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2001.12-5MG 2,2',4,5,5'-Pentachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 37680-73-2 Price on request 71294 2,2’-Biquinoline Price on request 682211 2-Aminoflubendazole, 10.0 µg/ml, Methanol, 10ml Price on request