2,4-DB Back Catalog number: 83573 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1895.18-K-IO Hydrindantin (reduced form of ninhydrin), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5103-42-4 Price on request 675105 Sodium p-n-undecylbenzenesulfonate, 10.0 µg/ml, M Price on request 98245 EPA Method 418.1 - TPH IR Standard Price on request