Butyric acid (C4H8O2) Back Catalog number: 50677 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9184 Pronamide Price on request 1570.34-100MG Pseudomorphine (free base), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 125-24-6 Price on request S-4476 D6729 Calibration Standard Mixtures Reference sample ARC96OX from Alberta Research Council, Edmonton, Canada Spark ignition engine fuel standard of known composition and concentration by mass. Price on request