Propionic acid Back Catalog number: 70345 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680853 PCB 99, 5mg Price on request 673274 Ethiofencarb-sulfoxide, 10.0 µg/ml, Acetonitrile, Price on request 680244 D10-Carbophenothion, 100 µg/ml, Acetone, 1ml Price on request