Metronidazole-hydroxy, 100 µg/ml, Methanol, 1ml

2,2',3,4,5,5'-Hexachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

2,6-Dinitrotoluene

Metoprolol tartrate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 56392-17-7