GC/MS Calibration Standard Back Catalog number: 43025 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended P-089S-10X Metribuzin, 1000µg/mL in MeOH, 1ml Price on request 678133 2,2'-DDE, 10 µg/ml, Cyclohexane, 10ml Price on request 674924 Imazosulfuron, 100mg Price on request