1,3-Bis(4-nitrophenyl)urea, 50mg Back Catalog number: 680032 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1967.12-50-IO 2,2',4,4',5-Pentabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 60348-60-9 Price on request 79304 Hexachlorocyclopentadiene Price on request 675255 3,5-Dinitrobenzoic acid, 100 µg/ml, Acetonitrile, Price on request