ISTD/Surrogate Standard Back Catalog number: 92572 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674759 Florfenicol, 250mg Price on request 8378.18-50-AN Sterigmatocystine, 50µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 10048-13-2 Price on request 30114 EPA Method 551.1 Performance Check Soln Price on request