Metronidazole, certified, 0.25g Back Catalog number: C15201000 Availability: In the manufacturer's stock Price on request - + Recommended 0179.17-500-IO 2-n-Pentyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147793-32-3 Price on request 66052 2,2’,5,5’-Tetrachlorobiphenyl (52) Price on request S-4110-100-CYX5 n-Alkanes C10-C40 (all +pristane/phytane) 33 Analytes, each 100µg/mL in cyclohexane; units: 1x1mL, 5x1mL, 10x1mL This standard includes all the n-paraffins C10-C40 + pristane and phytane. Price on request