Trimethoprim, 100μg/mL in Acetonitrile, 1ml

Metoprolol tartrate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 56392-17-7

2,2',3,3',4,5,5',6-Octabromodiphenyl ether, 1.2ml x 50ug/ml, toluene

L-Histidine hydrochloride monohydrate, 250mg