1-Ethylindole,neat,neat,10mg,

2,2',5,6'-Tetrachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 41464-41-9

2,4-Dimethyl-6-isooctylphenol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 198220-45-0

EPA Method 509 Internal Standard