Cefalexin monohydrate, 250mg Back Catalog number: 680355 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended X9020 Benzo(a)pyrene Price on request DF-14678-S 1,4,6,7,8-Pentachlorodibenzofuran (or 2,3,4,6,9), 1.2mL x 50ug/mL, nonane Price on request EPA-8280CC3 Calibration Verification Solution , 1ml, nonane Price on request