Perfluoro-n-[1,2-13C2]decanoic acid, 1.2ml x 50ug/ml, methanol

Theophylline

1-Methyl-4-n-propylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 1074-55-1

Diundecyl phthalate (mixture of branched isomers),