EPA Method 500 Series Internal Std #4

5,12-Naphthacenequinone, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1090-13-7

Flurochloridone, 250mg

2-Methyl-1-propanethiol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 513-44-0