EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673882 Paraoxon-ethyl, 100 µg/ml, Cyclohexane, 5ml Price on request 8491.22-10MG Colchinine, Comet assay grade, , Solvent-, Unit , # of units-, Cas.no. 64-86-8 Price on request 12140.10-100-ME Etrimfos,100 µg/mL,MeOH,1mL, Price on request