2,3,3',4'-Tetrachlorobiphenyl (56) Back Catalog number: 66056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0230.32-1MG Naphtho[2,3-a]coronene, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 190-74-9 Price on request 79616 Perylene Price on request 58245 Rhodium (Rh) Price on request