Erythromycin, 100 µg/ml, Methanol, 5ml

(S)-Pregabalin, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 148553-50-8

9-Hydroxy-9-n-methylfluorene

GC-IRMS Standards ((C25 (?13C: -28.21); C30 (?13C: -28.60); C36 (?13C: -26.15); C40 (?13C: -27.05)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no.