Tetra-n-butyltin-d36,1000 µg/mL,MeOH,1mL,

alpha alpha alpha (20S)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 41083-75-4

Dichlofenthion, 100 µg/ml, Ethyl acetate, 5ml

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