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 X9116 Hexachloroethane Price on request 676566 Maleic acid, 250mg Price on request 92111 EPA Method 8121 Chlorinated Hydrocarbons Price on request