5-MAPB is a synthetic euphoric stimulant with effects similar to MDMA, 5-APB, and related chemicals. Structurally related to MDMA, 5-MAPB has empathogenic effects. Though 5-MAPB is less physically stimulating than many euphoric stimulants, jaw tension, nystagmus, and other such side effects are still reported. 5-MAPB has been available in online research chemical.
5-(2-methylaminopropyl)benzofuran (abbreviated 5-MAPB) is a synthetic entactogen of the substituted benzofuran class of chemicals, which are known to produce euphoric, entactogenic, stimulating and mildly hallucinogenic effects. These include such MDA-inspired substances as 5-APB, 6-APB and 5-EAPB, among others. 5-MAPB is the N-methylated form of 5-APB, analogously to how MDMA is the N-methylated form of MDA.
This compound is known for its stimulating, euphoric and entactogenic effects that is capable of acting a quasi-substitute for MDMA proper, which has resulted in its rise in popularity as a research chemical that is easily accessible through the use of online vendors. It has been sold as a designer drug since 2010.
5-MAPB is commonly found as the succinate and hydrochloride salt. The hydrochloride salt is 10% more potent by mass so doses should be adjusted accordingly.
5-(2-methylaminopropyl)benzofuran, or 5-MAPB, is a substituted benzofuran and phenethylamine. It is comprised of an N-methylated ethylamine chain and a furan ring attached to a central benzene ring. It can also be classified as a derivative of methamphetamine because the N-methylated ethylamine chain is alpha methylated in an analagous manner. Molecules of the amphetamine class contain a phenethylamine core featuring a phenyl ring bound to an amino (NH2) group through an ethyl chain with an additional methyl substitution at Rα. The oxygen atom in the furan ring is placed at the 5 position, which generally constitutes more stimulating effects than when the oxygen is placed at the 6 position, which usually renders it more psychedelic in effect.
5-MAPB is a triple reuptake inhibitor for the monoamines norepinephrine, dopamine and serotonin as well as being an agonist for the 5-HT2A and 5-HT2B receptors. It has also been speculated that 5-MAPB acts as a releasing agent for the previously mentioned neurotransmitters.
As a result, releasing agents such as 5-MAPB may exert their activity by effectively boosting the levels of the serotonin, norepinephrine and dopamine neurotransmitters in the brain by binding to and partially blocking the transporter proteins that normally clear and reuptake those monoamines from the synaptic cleft. This allows serotonin, dopamine and norepinephrine to accumulate within various reward and cognition-related areas in the brain, resulting in stimulating and euphoric effects.