EPA Method 551.1 Performance Check Sol’n Back Catalog number: 30115 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8491.22-10MG Colchinine, Comet assay grade, , Solvent-, Unit , # of units-, Cas.no. 64-86-8 Price on request 682209 Benoxacor, 10.0 µg/ml, Acetonitrile, 10ml Price on request 12120.14-100-ME Lidocaine,100 µg/mL,MeOH,1mL, Price on request