Custom Calibration Standard Back Catalog number: 59419 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10396.21-50-ME (-)-delta-9-THC-acid-13C4 Price on request 2768.8-100-AN Atrazine, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1912-24-9 Price on request 675273 Pyrimidifen, 10mg Price on request