Silica (SiO2) Back Catalog number: 54169 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8CL-PFOS Sodium 8-chloroperfluoro-1-octanesulfonate, 1.2ml x 50ug/ml, methanol Price on request C14196400 Hexanoic acid-methyl ester, 1ml Price on request 0216.26-10UG Dibenzo[g,p]chrysene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 191-68-4 Price on request