Interference Standard 4 Back Catalog number: 52041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 34461 2,3-Dimethylheptane Price on request 8115.9-100-AN 2-[2,4-Dinitrophenylhydrazone]pyruvaldehyde, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 29903-80-8 Price on request 678288 2,4-Dibromophenol, 100 µg/ml, Methanol, 1ml Price on request