Diflubenzuron, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 673257 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-C Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 10791.14-100-IO 4-n-Octylphenol-d4 Price on request 73622 Dimepiperate Price on request