Anodyne

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4-MPD
Generated by the Chemistry Development Kit (http://github.com/cdk)
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
Common35.8 - 40 mg
Strong40 - 46.3 mg
Heavy46.3 - 50 mg
Extreme50 mg +
Intravenous
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Light≤ 19.5 mg
Common19.5 - 20 mg
Strong20 - 25 mg
Heavy25 - 38.6 mg
Extreme38.6 mg +
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

4-Methylpentedrone (also known as 4-MPD, 4-Methyl-α-methylamino-valerophenone, 1-Pentanone, 2-(methylamino)-1-(4-methylphenyl)-, RefChem:99917, 1-(4-Methylphenyl)-2-methylamino-pentan-1-one, YEC91861, 2-(methylamino)-1-(p-tolyl)pentan-1-one or 1-(4-methylphenyl)-2-(methylamino)pentan-1-one) is a substance of the cathinone class.

Chemistry

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4-Methylpentedrone is a racemic mixture of the

Stereoisomers
(R)-4-MethylpentedroneGenerated by the Chemistry Development Kit (http://github.com/cdk)
(S)-4-MethylpentedroneGenerated by the Chemistry Development Kit (http://github.com/cdk)
Anodyne Usernotes
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0xea / 4-Methylpentedrone[hydrochloride] via Insufflated and Intravenous at 5-50mg intravenous and 20-50mg insufflated

Legal status []

  • 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 []

  • Substituted cathinones
  • Anodyne

    • External links []

    References []

    1. National Center for Biotechnology Information. PubChem Compound Summary for CID 124201807, 4-Methylpentedrone. Accessed October 13, 2025. 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 October 13, 2025. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/G83HJ935NV