Interference Standard 4 Back Catalog number: 52041A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 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 90787 Diethyl ether, 2000µg/ml in MeOH, 1ml Price on request 3479.23-100-CY d-(cis-trans)-Phenothrin Price on request