Retention Time Marker Solution Iowa OA-2 Back Catalog number: 51183 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDD-2 2-Chloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request 57063 Europium (Eu) Price on request 11617.63-100MG Cyanocobalamine, 98% (dry weight basis),neat,neat,100mg, Price on request