Description General description A primary urinary metabolite of flubromazepam, 3-hydroxyflubromazepam is a synthetic benzodiazepine and structural analog of phenazepam sold on the illicit market as a novel designer drug. This certified solution standard is suitable as starting material in calibrators and controls for GC/MS or LC/MS benzodiazepine testing applications in clinical toxicology, urine drug testing or forensic analysis. Legal Information CERILLIANT is a registered trademark of Cerilliant Corporation