Isobutyric acid Back Catalog number: 71809 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8923.16-100MG Perfluorokerosene (bp. 70-200) for Mass spectrometry, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. Price on request 3009.10-K-IO 3,3-Dimethyloctane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 4110-44-5 Price on request 96042 Triazine Standard Price on request