Fentanyl impurity A, 25mg

Ponceau 4R (E 124), 1g

2,7-Dimethylanthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 782-23-0

Cimetidine hydrochloride, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 70059-30-2