Metronidazole, certified, 0.25g

17ß(H),21 alpha(H)-(22RS)-Pentakishomohopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no.

Clarithromycin, 100mg

Custom Mix of deuterated PAHs 100µg/mL each in toluene d10-Fluorene 1530.13 d10-Phenanthrene 0389.14 d10-Fluoranthene 1337.16 d12-Chrysene 1024.18 d12-Benzo[a]pyrene 1088.20 d12-Perylene