WS Sulphate / TOC Back Catalog number: 54148 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1698.19-K-T 1-n-Propylpyrene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 42211-33-6 Price on request 9930.24-50UG 10:2 Di-PAPS-d4, neat, Solvent-neat, Unit ca. 50 µg, # of units-1, Cas.no. Price on request DF-2378-S 2,3,7,8-Tetrachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request