CWA Silica as SiO2 Back Catalog number: 55100 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3360.6-K-IO Chlorobenzene, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 108-90-7 Price on request 90126R Aroclor 1242 Price on request 1318.16-100-T 1-Fluoropyrene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1691-65-2 Price on request