EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0400.21-150-CY n-Heneicosane, ?13C: -28.59, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 629-94-7 Price on request 8493.2-100MG Methyl methanesulfonate, Comet assay grade, , Solvent-, Unit , # of units-, Cas.no. 66-27-3 Price on request 11903.6-250MG Metronidazole,neat,neat,250mg, Price on request