2,8-Dichloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Back Catalog number: MDD-28 Availability: In the manufacturer's stock Price on request - + Recommended 9434.5-100 Etridiazole, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2593-15-9 Price on request 30023 EPA Method 515.1 Internal Standard Price on request 9289.15-100-MEX5 O-Desmethyl tramadol-d6 (racemic) , 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. 16412-54-7 Price on request