Potassium (K) Back Catalog number: 56719 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673720 Trifluralin, 100 µg/ml, Ethyl acetate, 5ml Price on request 56081 Thallium (Tl) Price on request 681565 2-Chlorophenol, 10.0 µg/ml, Methanol, 10ml Price on request