Methacrifos, 100 µg/ml, Acetonitrile, 1ml

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

2-Methyl-2-butene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 513-35-9

Caffeine, 100 µg/ml, Methanol, 1ml