Cephalexin Back Catalog number: 72125 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52071 Spiking Standard 5 Price on request 30114 EPA Method 551.1 Performance Check Soln Price on request 2374.9-K-IO 4-Ethylguaiacol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2785-89-9 Price on request