1,2,3,6,7-Pentachloronaphthalene,,,,

1,2,4,5-Tetrachlorobenzene, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 95-94-3

8021 Internal & Surrogate Standard

17 alpha(H)-30-Diahopane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no.