2,4-DB, 250mg Back Catalog number: 676113 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended EPA-23CS3 Calibration Verification Solution, 1ml, nonane Price on request 8467.4-100 Trichlorfon, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 52-68-6 Price on request 1227.19-K-IO n-Butyl benzyl phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 85-68-7 Price on request