2,2’,3,5’-Tetrachlorobiphenyl (44) Back Catalog number: 66044 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674917 18O4-Sodium perchlorate, 100 µg/ml, Water, 1ml Price on request NK-ST-A4 Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 1505.30-100-IO (3 alpha(H)+3bß(H)),17ß(H),21ß(H)-3-Hydroxyhopane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 28196-47-6/ Price on request