EPA Method 531.1 - Analytes Back Catalog number: 30042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3233.20-K-IO 11-trans-Eicosenoic acid, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 62322-84-3 Price on request 673405 Penconazole, 100 µg/ml, Acetonitrile, 5ml Price on request 54517 Formic Acid (Formate) Price on request