PSA-C18-Mix 2

Fentanyl-D5

d4 C27 alpha alpha alpha (20R)-Cholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 205529-74-4

Boron, 5000 µg/mL in H2O, 100ml