Aroclor 1221 Back Catalog number: 90124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72239 n-Hexane-d14 Price on request 73061 Fentanyl-D5 Price on request MDD-27 2,7-Dichloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request