n-Butane Back Catalog number: 79600 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0619.30-100-IO Friedelane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 559-73-9 Price on request PCB-IS-B Mass-Labelled PCB Solution/Mixture , 1.2ml, nonane Price on request 2125.12-100-IO Arochlor 1221 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 11104-28-2 Price on request