Propionaldehyde-DNPH Back Catalog number: 83557 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94549 Semi-Volatile Standard Price on request 0137.12-K-IO 2-n-Octylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 880-36-4 Price on request T774202 Triclocarban-13C6, 1mg Price on request