EPA Method 500 Series Internal Std #4

2,3,3',4,5,5'-Hexachlorobiphenyl-2',4',6'-d3,100 µg/mL,isooctane,1mL

DNOC-d3, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1219804-69-9

Fenoprop methyl ester