2-Butanone Back Catalog number: 79253 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1604.12-50-IO 2-Fluorodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 124330-20-7 Price on request 8:2DIPAP Sodium bis(1H,1H,2H,2H-perfluorodecyl)phosphate, 1.2ml x 50ug/ml, methanol Price on request 95091 ASTM Benzene Amp#4 Price on request