Theophylline,1000 µg/mL,MeOH,1mL,

Methyl hexadecanoate-d31 (Methyl palmitate-d31), 1000µg/mL, Solvent-n-hexane, Unit 1mL, # of units-5, Cas.no. 29848-79-1

Water Blank

iso-Chloridazon, 100 µg/ml, Ethyl acetate, 5ml