4-Nitrophenol, 100 µg/ml, Methanol, 5ml Back Catalog number: 673974 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 679874 4-Aminobiphenyl, 100 µg/ml, Acetonitrile, 1ml Price on request 31241 EPA Method 531.1 Individual Analytes Price on request 79097 Aroclor 1232 Price on request