Interference Standard 4 Back Catalog number: 53041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2770.7-100-AN Simazine, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 122-34-9 Price on request 92808 Fonofos Price on request 3804.15-100-ME 6-Chloro-4-(2-chlorophenyl)-2-quinazoline carboxaldehyde, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-, Cas.no. 93955-15-8 Price on request