EPA Method 531.2 - Analytes Back Catalog number: 34042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1654.13-100-IO 1,1,1,3,12,13-Hexachlorotridecane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 865306-23-6 Price on request 679631 D3-4-Acetamidoantipyrine, 10mg Price on request 681491 13C3-Caffeine, 100 µg/ml, Methanol, 1ml Price on request