Butyric acid (C4H8O2) Back Catalog number: 50677 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3915.30-10MG Erythrodiol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 545-48-23 Price on request 673648 Paraoxon-ethyl, 100 µg/ml, Ethyl acetate, 5ml Price on request 70206 Merphos Price on request