Tolpyralate, 100 µg/ml, Acetonitrile, 1ml

Caffeine-d9 (1,3,7-trimethyl-d9),neat,neat,10mg

Cimetidine sulphoxide dihydrochloride, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 54237-72-8

13C6-2,4-D, 100µg/ml in Acetonitrile, 1ml