3,4-Dichloromethylphenidate, also known as 3,4-CTMP, is a structural analogue of methylphenidate (Ritalin). 3,4-CTMP is reportedly seven times more potent than methylphenidate and is sold online as a novel psychoactive stimulant. This certified Snap-N-Spike? solution standard is applicable for use in LC/MS or GC/MS applications such as urine drug testing, clinical toxicology and forensic analysis.