Potassium (K) Back Catalog number: 57719 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1303.8-100-ME 3,4,4-Trimethyl-trans-2-pentene, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 39761-57-4 Price on request 11143.24-K-IO Tris(2,3-dimethylphenyl) phosphate,1000 µg/mL,isooctane,1mL, Price on request 71647 n-Tetratetracontane Price on request