13C3-Caffeine, 100 µg/ml, Methanol, 1ml

2-Nitrotoluene, 250mg

2-Methoxy-4-vinylphenol, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-, Cas.no. 7786-61-0

Dibenzo[a,e]pyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 192-65-4