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4-Methylpentedrone

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4-MPD
4-Methylpentedrone
Molecular structure via molpic based on CDK
Rotamer
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Conformer structure via 3Dmol.js
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Physical properties
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205.30 g/mol [1]
2.9 [1]
Structural Identifiers
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C13H19NO [1]
2-(methylamino)-1-(4-methylphenyl)pentan-1-one [1]
CCCC(C(=O)C1=CC=C(C=C1)C)NC [1]
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 [1]
InChIKeyAKVKBEDACKJNPO-UHFFFAOYSA-N [1]
Dosing[]
Insufflated
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Light≤ 35.8 mg(30x - 26.8%)
Common35.8 - 40 mg(36x - 32.1%)
Strong40 - 46.3 mg(18x - 16.1%)
Heavy46.3 - 50 mg(26x - 23.2%)
Extreme50 mg +(2x - 1.8%)
Intravenous
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Light≤ 19.5 mg(29x - 25%)
Common19.5 - 20 mg(33x - 28.4%)
Strong20 - 25 mg(27x - 23.3%)
Heavy25 - 38.6 mg(14x - 12.1%)
Extreme38.6 mg +(13x - 11.2%)
Statistically derived dosages via DBI-IGS
We do not take any responsibility for medical complications or loss of life sustained by following these dosages blindly.

4-Methylpentedrone (also known as 4-Methylpentedrone, 4-MPD, 4-Methyl-α-methylamino-valerophenone, Dtxsid301032536, 4-methylpentedrone, Dtxcid701517550, 1-(4-Methylphenyl)-2-methylamino-pentan-1-one, Unii-g83hj935nv, Schembl28931348 or Chebi:228252) is a substance of the cathinone class.

Chemistry

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4-Methylpentedrone is a racemic mixture of the .

(R)-4-MethylpentedroneGenerated by the Chemistry Development Kit (http://github.com/cdk)
(S)-4-MethylpentedroneGenerated by the Chemistry Development Kit (http://github.com/cdk)
Stereoisomer enumberation with rdkit

Subjective effects []

0xea / 4-Methylpentedrone []
Routes:
  • Insufflated (20 - 50mg)
  • Intravenous (5 - 50mg)
    Onset: 15 s
    Duration: 2 - 3 h
Salts:
  • Hydrochloride
Active Effects:Side Effects:Notes:
  • quite potent

Experience reports []

There are currently 1 experience reports involving 4-methylpentedrone on :

 []

  • Germany: 4-Methylpentedrone is a Neuer-Psychoaktiver-Stoff under the "Neue-psychoaktive-Stoffe-Gesetz (NpSG)".
  • United Kingdom: 4-Methylpentedrone is a Class B substance.

See also []

External links []

References []

  1. National Center for Biotechnology Information. PubChem Compound Summary for CID 124201807, 4-Methylpentedrone. Accessed May 6, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/124201807

  2. U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. 4-Methylpentedrone. UNII: G83HJ935NV. Global Substance Registration System. Accessed May 6, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/G83HJ935NV