Description General description An internal standard suitable for quantitation of UR-144 5-Hydroxypentyl metabolite levels using LC-MS/MS or GC/MS for synthetic cannabinoid testing methods in forensic analysis, clinical toxicology, or urine drug testing. UR-144 5-Hydroxypentyl metabolite is a primary urinary metabolite of UR-144, a third generation synthetic cannabinoid that has seen wide popularity in illicit drug markets since late 2012. This biomarker is also referred to as the terminal omega hydroxyl metabolite of UR-144. Legal Information CERILLIANT is a registered trademark of Cerilliant Corporation Snap-N-Spike is a registered trademark of Cerilliant Corporation