Carbon disulphide

1,2,3,4,7,8-Hexachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

9-Methylcarbazole, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1484-12-4

EPA Method 500 Internal Standard #6