2,2',3,4,5'-Pentachlorobiphenyl

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

Pentafluorobenzoyl chloride, neat, Solvent-neat, Unit 25mL, # of units-1, Cas.no. 2251-50-5

4-Bromophenyl phenyl ether