Theophylline, 100mg

1,3-Dimethyl-2-(3,7-dimethyloctyl)cyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 19550-61-9

11-Deoxycortisol, 1000µg/ml in MeOH, 1ml

Erythromycin-13C,d3, 1mg