EPA Method 550 Analytes Back Catalog number: 30051 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 685352 D5-threo-Chloramphenicol, 100µg/ml, Acetonitrile, 1ml Price on request 71574 2,4,5-Trichlorophenol-PFB derivative Price on request 1577.23-10MG Pholcodine, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 509-67-1 Price on request