Propionaldehyde-DNPH Back Catalog number: 83557 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59604 Conductance @ 20°C [1413 µmho/cm] Price on request 678464 Paraoxon-methyl, 10 µg/ml, Acetonitrile, 10ml Price on request 50585 pH 1.0 Standard @ 25°C Price on request