Potassium (K) Back Catalog number: 56019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3428.12-100-CY Isofenphos-des-N-isopropyl Price on request 11693.12-100-IO 2,3,3',5'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request XA11940200AC 2,4-D 13C6, 100µg/ml in Acetone, 1ml Price on request