Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml, nonane Back Catalog number: DF-LCS-B40 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 72073 3,3’-Dichlorobenzidine-d6 Price on request 91960 Non-Chlorinated Waste Mix #1 Price on request L20018900IO PCB No. 189, 10µg/ml in Isooctane, 10ml Price on request