Caffeine, 100µg/ml in MeOH, 1ml

1,2,4-Trichlorobenzene-d3, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 2199-72-6

p-Cresol

EDDP perchlorate,1000 µg/mL (as pyrrolinium) ,MeOH,1mL,