Dichloropane

Dichloropane (RTI-111; 2β-carbomethoxy-3β-(3,4-dichlorophenyl)tropane) is a synthetic stimulant of the substituted tropane chemical class — a potent cocaine analog and member of the phenyltropane family of compounds originally developed as research tools for studying monoamine transporters. RTI-111 was synthesized as part of the Research Triangle Institute (RTI) program that produced numerous phenyltropane analogs (the RTI series) for pharmacological research into the dopamine, serotonin, and norepinephrine transport systems.

Dichloropane is substantially more potent than cocaine at all three monoamine transporters, with particularly high affinity for the serotonin transporter (SERT), which it blocks with high potency alongside significant DAT and NET inhibition. This triple reuptake inhibitor profile, with prominent serotonergic activity, produces effects that are described as different from cocaine's predominantly dopaminergic high — the SERT component contributes mood elevation and empathogenic qualities not typically associated with cocaine.

As a research chemical in the strict sense — synthesized for and primarily used in pharmacological research — dichloropane has minimal documented recreational or harm reduction community use compared to more common stimulant RCs. Its presence in the research chemical market is primarily of interest to specialists; typical recreational users seeking cocaine-like effects or stimulant enhancement are unlikely to encounter it. The primary pharmacological interest is in its use as a ligand for monoamine transporter studies using PET/SPECT neuroimaging.