5-APDI is an indane with an amphetamine-like aminopropane group. It inhibits the uptake of serotonin, dopamine, and norepinephrine by crude synaptosomes (IC50 = 82, 1,847, and 849 nM, respectively). In discrimination studies using rats, 5-APDI fully substitutes for the entactogen N-methyl-1,3-dioxolyl-N-methylbutanamine but does not substitute for amphetamine. This product is intended for forensic and research applications.