2,3-Butanedione, 1ml Back Catalog number: 680148 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 3750.6-K-IO 1,2,3,4-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml Price on request DF-IS-A Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 1ug/ml, nonane Price on request 97633 VOC Standard Price on request