Tribufos, 100 µg/ml, Acetonitrile, 5ml

n-Tetradecane , ?13C: -33.13, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-59-4

Acetylsalicylic acid-d4 (ring-d4),100 µg/mL,MeOH,1mL,

m-Cresol