1,2,3,8,9-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Back Catalog number: MDD-12389 Availability: In the manufacturer's stock Price on request - + Recommended 53335 Mixed Calibration Standard 1 Price on request NK-ST-B4 Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 90552 EPA 502Gases - Mix A Price on request