Silicon (Si) Back Catalog number: 57114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1318.16-100-T 1-Fluoropyrene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1691-65-2 Price on request 10637.12-50-T 1,2,3,4,7,8,9-Heptachlorodibenzofuran Price on request 8239.12-100MG 1-Fluorododecane, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 334-68-9 Price on request