n-Butane Back Catalog number: 73647 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0601.27-100-IO ß alpha alpha (20R)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 481-20-9 Price on request R-094S 1,3-Dinitropyrene, 100μg/ml in Toluene, 1ml Price on request 52163 ICP-AES ICV Water/ Soil Matrix, in 5% HNO3, 100ml Price on request