Caffeine

Ethanol standard in serum,1.0g/L,serum, 1.5mL

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

13(H)-Dibenzo[a,i]carbazole, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 239-64-5