2,3,3',4'-Tetrachlorobiphenyl (56) Back Catalog number: 66056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0241.24-10MG Dibenzo[a,i]pyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 189-55-9 Price on request 11202.6-10MG 1D,1D,2H,2H-1-Hydroxyperfluorohexane,neat,neat,10mg, Price on request 90171 Azobenzene Price on request