Baycarb Back Catalog number: 70559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675174 3,4-Dimethylphenol, 100 µg/ml, Methanol, 5ml Price on request 90733 3,3'-Dimethylbenzidine Price on request DFP-IS-B10 Mass-Labelled PCDD & PCB Internal Standard Solution, 1.2ml, nonane Price on request