Piperonyl butoxide

(24S)-24-Ethylcholesta-3,5,22-triene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 102491-96-3

Theophylline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-55-9

Tetrachloro-m-xylene, 1000μg/ml in MeOH, 1ml