3,4-dichloromethylphenidate (abbreviated as 3,4-DCMP, and incorrectly as 3,4-CTMP for the d,l-threo diastereomer) is a potent stimulant drug from the phenidate class closely related to methylphenidate.

Examples of compounds with the same SAR modifictions done to increase serotoninergic activity include naphthylaminopropane and 3,4-dichloroamphetamine.

Examples of compounds with the same SAR modifiction done to increase affinity to DAT & NET include dichloropane and O-2390.

3,4-CTMP, the d,l-threo diastereomer of 3,4-DCMP, is approximately seven times more potent than methylphenidate in animal studies, but has weaker reinforcing effects due to its slower onset of action.

[9] Sweden's public health agency suggested to classify 3,4-CTMP as hazardous substance on 10 November 2014.