2-Butanone Back Catalog number: 82432 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71468 2,2',4,6,6'-Pentamethyl-3-heptene (cis,trans) Price on request DF-LCS-A Mass-Labelled PCDD/PCDF Solution/Mixture , 1.2ml , nonane Price on request 79028 Benzo(b)fluoranthene, 1000µg/ml in Acetonitrile, 1ml Price on request