Ethylbenzene, certified, 1ml

3,5,6-trichloro-2-pyridinol(4,5,6-13C3, 99%) cp 97%, 100ug/ml in Acetonitrile, 1,2ml

Ciprofloxacin HCl monohydrate, 100μg/ml in MeOH, 1ml

GC-IRMS Standards (C25 (?13C: -28.21); C30 (?13C: -28.60); C36 (?13C: -26.15)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no.