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 X9060 Dibromochloromethane Price on request 92789 EPA Method 8081A Pesticide Standard A Price on request 32211 1,1-Dichloroethane Price on request