Description_x000D_ General description_x000D_ An internal standard suitable for acetyl norfentanyl testing of urine or other matrices by GC/MS or LC/MS in applications such as pain prescription monitoring, clinical toxicology, urine drug testing, or forensic analysis. Acetyl norfentanyl is a major metabolite of acetyl fentanyl, a designer drug and fentanyl analog with a potency 40 times greater than heroin and 80 times greater than morphine. In June, 2013, the Centers for Disease Control (CDC) issued a health alert for acetyl fentanyl, reporting 14 overdose deaths in Rhode Island._x000D_ Legal Information_x000D_ CERILLIANT is a registered trademark of Cerilliant Corporation_x000D_ Snap-N-Spike is a registered trademark of Cerilliant Corporation