2,2',3,4',5-Pentachlorobiphenyl (90) Back Catalog number: 66090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1815.12-K-IO 3,3'-Diaminobenzidine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 91-95-2 Price on request 54533 Ammonium (NH4+) Price on request 9688.8-K-AN N-Nitroso-N-ethylaniline, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 612-64-6 Price on request