5-mapdb 5-mapdb 5-mapdb (1-(2,3-dihydrobenzofuran-5-yl)-n-methylpropan-2-amine) is a chemical compound which acts as an entactogenic drug. it is structurally related to drugs like 5-apdb and 5-mapb, which have similar effects to mdma and have been used as recreational drugs. 5-mapdb has been studied to determine its pharmacological activity, and was found to be a relatively selective serotonin releaser, though with weaker actions as a releaser of other monoamines and 5-ht2 receptor family agonist, similar to older compounds such as 5-apdb. 5-mapdblegal statuslegal status au: analogue of mdma ca: schedule i de: npsg (industrial and scientific use only) uk: class b us: analogue to a schedule i/ii drug (mdma) identifiers iupac name 1-(2,3-dihydrobenzofuran-5-yl)-n-methylpropan-2-amine cas number1354631-78-9pubchem cid112500533chemspider52085108uniifs5z21939zchemical and physical dataformulac12h17nomolar mass191.27 g·mol−13d model (jsmol)interactive image smiles cc(nc)cc1=cc(cco2)=c2c=c1 inchi inchi=1s/c12h17no/c1-9(13-2)7-10-3-4-12-11(8-10)5-6-14-12/h3-4,8-9,13h,5-7h2,1-2h3key:plqtzocluhhcoi-uhfffaoysa-n legality 5-mapdb was banned in the uk in june 2013 as a temporary class drug along with 9 other related compounds, despite having never been sold as a street drug itself. this was due to concerns that it would have similar effects to drugs such as 5-apb that had been widely sold already, and 5-mapdb might therefore be likely to become used recreationally also, if it were not banned preemptively.