Calibration Standard Kit Back Catalog number: 52089 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678403 Etofenprox, 100 µg/ml, Acetonitrile, 5ml Price on request 94734 4-Chloroaniline Price on request CFN98767-10MG Reticuline, >98%, 10mg Price on request