Calibration Standard Mix 4 Back Catalog number: 52013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11263.8-100-AN Atrazine-2-hydroxy-d5 (ethyl-d5),100 µg/mL,acetonitrile,1mL, Price on request 70537 Anthraquinone Price on request 0142.18-K-T m-Terphenyl, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 92-06-8 Price on request