Valsartan-d8 (Valine-d8),100 µg/mL,MeOH,1mL,

1,2,4,5-Tetrachlorobenzene

DL-N-Nitrosonornicotine-d4, 1000µg/mL, Solvent-acetonitrile, Unit 2mL, # of units-1, Cas.no. 66148-19-4

2,2',3,3',4,6,6'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL,