2,2’,3,4,4’,5’-Hexachlorobiphenyl (138)

Paraxanthine, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 611-59-6

525/526 Internal Standard

Naphtho[8,1,2-abc]coronene (Naphtho[2'.8',2.4]coronene), neat, Solvent-neat, Unit ca. 100µg, # of units-1, Cas.no. 6596-38-9