Cerilliant - Model C-182-0.5ML -Cyclopentyl Fentanyl HCl

100 ug/mL (as free base) in Methanol - Certified Reference Material. A certified Snap-N-Spike solution of cyclopentyl fentanyl suitable for use as starting material in calibrators and controls for LC/MS or GC/MS testing methods in clinical toxicology, urine drug testing, or forensic analysis applications.