[CAS Number 136765-43-0 (FB)] d,l-MDMA-D5.HCl is a stable-labeled internal standard used for quantifying d,l-MDMA.hydrochloride (d,l-3,4-methylenedioxymethamphetamine.hydrochloride). d,l-MDMA.HCl is a synthetic, psychoactive drug with a similar chemical structure to methamphetamine and mescaline. d,l MDMA.HCl is an illegal drug that acts as both a stimulant and psychedelic, producing an energizing effect and distortions in time and perception and enhanced enjoyment from tactile experiences. It is commonly known as Ecstasy and Molly. This product is available as a CRM solution and RM bulk powder for qualitative and quantitative protocols in chemical/biochemical testing and assay applications.