This page uses content from Wikipedia and is licensed under CC BY-SA.


Clinical data
Other names4-MEAP; 4-MEAPP; N-Ethyl-4'-methylnorpentedrone; 2-(Ethylamino)-1-(4-methylphenyl)-1-pentanone; 4-Methyl-alpha-ethylaminopentiophenone
Legal status
Legal status
CAS Number
Chemical and physical data
Molar mass219.328 g·mol−1
3D model (JSmol)

4-Methyl-α-ethylaminopentiophenone (4-MEAP) is a designer drug of the cathinone class.[1][2] It is a higher homolog of 4-methylpentedrone (4-MPD) with an ethyl group in place of the methyl group. 4-MEAP has been found in samples of drugs sold as 4-MPD.[3]

In the United States, 4-MEAP is a Schedule I Controlled Substance.[4]


  1. ^ Varma, Anneka; Patel, Neel; Ford, Loretta; Jones, Rachel; Vale, J. Allister (2017). "Misuse of 2-(ethylamino)-1-(4-methylphenyl)-1-pentanone (4-MEAP), a synthetic cathinone". Clinical Toxicology. 55 (3): 231–232. doi:10.1080/15563650.2016.1271132. PMID 28074662.
  2. ^ Rojkiewicz, Marcin; Kuś, Piotr; Kusz, Joachim; Książek, Maria (2018). "Spectroscopic and crystallographic characterization of two cathinone derivatives: 1-(4-fluorophenyl)-2-(methylamino)pentan-1-one (4-FPD) hydrochloride and 1-(4-methylphenyl)-2-(ethylamino)pentan-1-one (4-MEAP) hydrochloride". Forensic Toxicology. 36 (1): 141–150. doi:10.1007/s11419-017-0393-6. PMC 5754380. PMID 29367865.
  3. ^ Danielle Hamby; Annessa Burnett; Michael Jablonsky; Brendan Twamley; Pierce V. Kavanagh; Elizabeth A. Gardner (May 2015). "Identification of 2-(ethylamino)-1-(4-methylphenyl)-1-pentanone (4-MEAP), a New "Legal High" Sold by an Internet Vendor as 4-Methyl Pentedrone". Journal of Forensic Sciences. 60 (3): 721–726. doi:10.1111/1556-4029.12712. PMID 25923458.
  4. ^ "Schedules of Controlled Substances: Temporary Placement of N-Ethylhexedrone, α-PHP, 4-MEAP, MPHP, PV8, and 4-Chloro-α-PVP in Schedule I". Drug Enforcement Administration.