2-Butanone Back Catalog number: 79253 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 25013 EPA Method 8260 - Purgeable Internal Standard Price on request 9417.16-50MG Venlafaxine hydrochloride Price on request 9133.9-10MG n-Heptyl acetate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 112-06-1 Price on request