{"Abbreviation":["4-MPD"],"Aliases":["4-Methylpentedrone","4-MPD","4-Methyl-α-methylamino-valerophenone","Dtxsid301032536","4-methylpentedrone","Dtxcid701517550","1-(4-Methylphenyl)-2-methylamino-pentan-1-one","Unii-g83hj935nv","Schembl28931348","Chebi:228252","YEC91861","2-(methylamino)-1-(p-tolyl)pentan-1-one","1-(4-methylphenyl)-2-(methylamino)pentan-1-one"],"CAS":"1373918-61-6","ChemicalClasses":["cathinone"],"Chirality":"racemic","DBI-IGS":["4-MPD"],"Dosing Info":[{"Method":"Insufflated","Tiers":{"Common":{"Entries":36,"Lower":35.8,"Percentage":32.1,"Unit":"mg","Upper":40},"Extreme":{"Entries":2,"Lower":50,"Percentage":1.8,"Unit":"mg","Upper":50},"Heavy":{"Entries":26,"Lower":46.3,"Percentage":23.2,"Unit":"mg","Upper":50},"Light":{"Entries":30,"Lower":35.8,"Percentage":26.8,"Unit":"mg","Upper":35.8},"Strong":{"Entries":18,"Lower":40,"Percentage":16.1,"Unit":"mg","Upper":46.3}}},{"Method":"Intravenous","Tiers":{"Common":{"Entries":33,"Lower":19.5,"Percentage":28.4,"Unit":"mg","Upper":20},"Extreme":{"Entries":13,"Lower":38.6,"Percentage":11.2,"Unit":"mg","Upper":38.6},"Heavy":{"Entries":14,"Lower":25,"Percentage":12.1,"Unit":"mg","Upper":38.6},"Light":{"Entries":29,"Lower":19.5,"Percentage":25,"Unit":"mg","Upper":19.5},"Strong":{"Entries":27,"Lower":20,"Percentage":23.3,"Unit":"mg","Upper":25}}}],"EliminationHalfLife":"","Erowid Experience Reports":[{"Author":"Winter","Id":118349,"Title":"Euphoria and After About an Hour Both of Us Feel Just Tired"}],"Esters":[],"Formating":[],"HeavyAtomCount":15,"IUPACName":"2-(methylamino)-1-(4-methylphenyl)pentan-1-one","InChI":"InChI=1S/C13H19NO/c1-4-5-12(14-3)13(15)11-8-6-10(2)7-9-11/h6-9,12,14H,4-5H2,1-3H3","InChIKey":"AKVKBEDACKJNPO-UHFFFAOYSA-N","MeSH Headers":[{"Id":"M000749821","Link":"https://id.nlm.nih.gov/mesh/M000749821.html","Name":"4-methylpentedrone","Ref":15},{"Id":"DescTree","Link":"https://www.nlm.nih.gov/mesh/meshhome.html","Name":"MeSH Tree","Ref":16},{"Id":"PubMed from MeSH","Link":"https://www.nlm.nih.gov/mesh/meshhome.html","Name":null,"Ref":25}],"MolecularFormula":"C\u003csub\u003e13\u003c/sub\u003eH\u003csub\u003e19\u003c/sub\u003eNO","MolecularWeight":"205.30 g/mol","Opticalactivity":"( + / - )","PD":"PD045042","PubChemId":124201807,"Record Description":["4-Methylpentedrone (also known as 4-MPD and 4-Methyl-\u0026#945;-methylamino-valerophenone), is a stimulant drug of the cathinone class that has been sold online as a designer drug. It is a higher homologue of 4-Methylmethcathinone (Mephedrone) and 4-Methylbuphedrone (4-MeMABP), and the p-Methyl analogue of Pentedrone. 4-MPD acts as a reuptake inhibitor for dopamine and norepinephrine without causing release. Another compound, 4-Methyl-N-Ethyl-Pentedrone (4-MEAP, 4-MEAPP) has been found to be incorrectly sold as 4-Methylpentedrone.","Wikipedia|List of designer drugs|Stimulants|Cathinones"],"Records":{"UNII":{"Impurities":[]}},"RefChem":"99917","RefCount":3,"RefCur":"","References":[{"Name":"Wikipedia","Urls":[{"Link":"https://en.wikipedia.org/wiki/4-Methylpentedrone","Name":"4-Methylpentedrone","Sub":false}]},{"Name":"Wikidata","Urls":[{"Link":"https://www.wikidata.org/wiki/Q20707085","Name":"4-Methylpentedrone","Sub":false}]},{"Name":"PubChem","Urls":[{"Link":"https://pubchem.ncbi.nlm.nih.gov/compound/124201807","Name":"4-Methylpentedrone","Sub":false}]},{"Name":"Probes \u0026 Drugs","Urls":[{"Link":"https://www.probes-drugs.org/compound/PD045042","Name":"4-Methylpentedrone","Sub":false}]},{"Name":"Common Chemistry","Urls":[{"Link":"https://commonchemistry.cas.org/detail?cas_rn=1373918-61-6","Name":"4-Methylpentedrone","Sub":false}]},{"Name":"UNII","Urls":[{"Link":"https://gsrs.ncats.nih.gov/ginas/app/ui/substances/G83HJ935NV","Name":"4-Methylpentedrone","Sub":false}]},{"Name":"EPA DSSTox","Urls":[{"Link":"https://comptox.epa.gov/dashboard/chemical/details/DTXSID301032536","Name":"4-Methylpentedrone","Sub":false}]}],"Refs":["National Center for Biotechnology Information. PubChem Compound Summary for CID 124201807, 4-Methylpentedrone. Accessed May 6, 2026. \u003ca href=https://pubchem.ncbi.nlm.nih.gov/compound/124201807\u003ehttps://pubchem.ncbi.nlm.nih.gov/compound/124201807\u003c/a\u003e","U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. 4-Methylpentedrone. UNII: G83HJ935NV. Global Substance Registration System. Accessed May 6, 2026. \u003ca href=https://gsrs.ncats.nih.gov/ginas/app/beta/substances/G83HJ935NV\u003ehttps://gsrs.ncats.nih.gov/ginas/app/beta/substances/G83HJ935NV\u003c/a\u003e"],"SMILES":"CCCC(C(=O)C1=CC=C(C=C1)C)NC","SaltData":[],"Salts":[],"Scheduling":[{"act":"Neue-psychoaktive-Stoffe-Gesetz (NpSG)","gov":"Germany","ref":[],"schedule":"Neuer-Psychoaktiver-Stoff"},{"gov":"United Kingdom","ref":[],"schedule":"Class B substance"}],"StereoisomerData":[{"ChemicalClasses":["cathinone"],"SMILES":"CCC[C@@H](NC)C(=O)C1=CC=C(C)C=C1","Structure":"\u003csvg xmlns=\"http://www.w3.org/2000/svg\" preserveAspectRatio=\"none\" style=\"display:block\" viewBox=\"0 0 94.464 49.848\"\u003e\u003crect width=\"100%\" height=\"100%\" fill=\"#fff\"/\u003e\u003cdesc\u003eGenerated by the Chemistry Development Kit (http://github.com/cdk)\u003c/desc\u003e\u003cg fill=\"#3050f8\" stroke=\"#000\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\".7\"\u003e\u003cpath fill=\"#fff\" 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