COD Calibration Standard Back Catalog number: 50241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 683691 Atrazine-desisopropyl-2-hydroxy, 100 µg/ml, Metha Price on request 73602 Oxytetracycline Price on request 3440.5-100 DL-Methionine, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 59-51-8 Price on request