2,4-Dibromophenol, Internal Standard Stock Solution Cat No 2061.6

2,3',5,5'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

1,2,3,4-Tetramethylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 488-23-3

EPA Method 500 Series Internal Standard