4-Nitrophenol, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 679900 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 83550 Hexanaldehyde-DNPH Price on request 1829.10-1G 2-Phenylbutyric acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 90-27-7 Price on request MCDD-2378 2,3,7,8-[37Cl4]-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request