Mass-Labelled PCDF/PCB Syringe Spike, 1.2ml, nonane Back Catalog number: DFP-IS-A Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 73144 Ethylsulfate sodium salt Price on request 72969 Benzyl 4-hydroxybenzoate Price on request 673902 Azoxystrobin Metabolite R402173, 10mg Price on request