COD Calibration Standard Back Catalog number: 50255 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680990 Oxytetracycline hydrochloride, 100 µg/ml, Methano Price on request M331190 N2-Methyl Trimethoprim (Impurity), 10mg Price on request 673883 Pirimicarb, 250mg Price on request