2,3,3',4,4',5'-Hexachlorobiphenyl (157) Back Catalog number: 68157 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9060.7-K-IP Tetrachloroguaiacol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 2539-17-5 Price on request 70198 Hexachlorocyclopentadiene Price on request 1549.18-K-IOX5 n-Octadecane-d38, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 16416-31-2 Price on request