COD Calibration Standard Back Catalog number: 50451 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674745 Bromoxynil-methyl ether, 100 µg/ml, Acetonitrile, Price on request 98234 Benzene [50 ppm] Price on request H946332 4-Hydroxy-3-methoxymandelic Acid-d3, 10mg Price on request