Calibration Standard Mix 1 Back Catalog number: 53033 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-13479-S 1,3,4,7,9-Pentachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 675434 Tetradifon, 250mg Price on request 676498 Pentoxifylline, 100mg Price on request