2-Butanone Back Catalog number: 82432 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677445 Synephrine, 50mg Price on request 9486.16-50-IO 1-Chloropyrene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 34244-14-9 Price on request 2128.12-100-IOX5 Arochlor 1254, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11097-69-1 Price on request