Acetyl fentanyl is a designer drug and fentanyl analog with a potency 40 times greater than heroin and 80 times greater than morphine. Acetyl fentanyl has been directly implicated in numerous opiate overdose deaths throughout the United States. This stable-labeled internal standard is suitable for quantification of acetyl fentanyl levels in urine or other matrices by LC/MS or GC/MS for clinical toxicology, forensic analysis, prescription monitoring, or urine drug testing applications. This Certified Spiking Solution® is supplied in a convenient, quantitative, US DEA-exempt solution format and with TK #s for Canadian customers.