EPA Method 1613 Calibration Kit, 5 ampoules, nonane

2,3',5',6-Tetrachlorobiphenyl

4-(N-Methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 64091-91-4

Sildenafil citrate,neat,neat,25mg