Roxithromycin-d7, 1mg

trans-1-Methyl-2-propylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 42806-77-9

DL-Methionine, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 59-51-8

5-Methyl-3-heptanone