Perfluoro-n-tridecanoic acid, 1.2ml x 50ug/ml, methanol

Selenium (Se)

2',3,4,4',5-Pentachlorobiphenyl (123)

3,3',4,4'-Tetrachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 32598-13-3