4,4-DDT standard

1,2,3,4-Tetrachlorobenzene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 634-66-2

Bis(2-n-butoxyethyl) phthalate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 117-83-9

(-)-Cotinine, 100µg/mL in Acetonitrile, 1ml