2,4-DB, 250mg Back Catalog number: 676113 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DF-SS-A Mass-Labelled PCDD Sampling Spike Solution, 1.2ml x 1000ng/ml, nonane Price on request 70201 Hexazinone Price on request 32851 2-Ethyltoluene Price on request