2,2’,3,3’,4,4’-Hexachlorobiphenyl (128) Back Catalog number: 63128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9168.23-5MG Pholcodine-N,N'-dioxide, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. Price on request 1548.17-K-IOX5 n-Heptadecane-d36, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 39756-35-9 Price on request 2215.10-K-TX5 1-Aminonaphthalene-d7, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 78832-53-8 Price on request