2,3-Butanedione Back Catalog number: 72508 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53040 Interference Standard Mix 2 Price on request 70101 4,4’-DDT Price on request 9404.24-K-ME Carvedilol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 72956-09-3 Price on request