Pesticides Calibration GC-MS/MS Back Catalog number: 98681 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8874.4-K-IO Pyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request 680131 Cyenopyrafen, 25mg Price on request 676879 2,4-D-butyl ester, 250mg Price on request