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 EPA-8280CC3 Calibration Verification Solution , 1ml, nonane Price on request 91515 8260 Surrogates / Internals Standard Price on request XA17723500ME 1,3,5-Trichlorobenzene, 100 ng/µl, 1ml Price on request