Psychedelic Research Chemicals or RC Chems are new synthetic substances which are structurally similar to the original drug, while being functional analogs. Data on their effects limited due as they’re fairly new and do not have a lot of human consumption history.

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This is an Experimental Substance with little data. This is most likely because the substance is is not very old. Information is limite and incomplete.

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4-HO-MPMI Also known as:

  • (R)-3-(N-methylpyrrolidin-2-ylmethyl)-4-hydoxyindole
  • 1H-Indol-4-ol, 3-[[(2R)-1-methyl-2-pyrrolidinyl]methyl]-[ACD/Index Name]
  • 3-{[(2R)-1-Methyl-2-pyrrolidinyl]methyl}-1H-indol-4-ol[German][ACD/IUPAC Name]
  • 3-{[(2R)-1-Methyl-2-pyrrolidinyl]methyl}-1H-indol-4-ol[ACD/IUPAC Name]
  • 3-{[(2R)-1-Méthyl-2-pyrrolidinyl]méthyl}-1H-indol-4-ol[French][ACD/IUPAC Name]
  • 4-Hydroxy-N-methyl-(α,N-trimethylene)tryptamine
  • lucigenol
  • [250672-65-2]
  • '250672-65-2
  • MFCD22199986[MDL number]

A rare tryptamine derivative first synthesised by David Nichols. This drug, also known as lucigenol, has rarely been documented outside the lab. It is known to be a psychedelic similar to other psychoactive tryptamines, with a potency similar to DOI, but little else is known.


Common Name4-HO-MPMI
Systematic name4-HO-MPMI
Std. InChiInChI=1S/C14H18N2O/c1-16-7-3-4-11(16)8-10-9-15-12-5-2-6-13(17)14(10)12/h2,5-6,9,11,15,17H,3-4,7-8H2,1H3/t11-/m1/s1
Avg. Mass230.3055 Da
Molecular Weight230.3055
Monoisotopic Mass230.141907 Da
Nominal Mass230
ChemSpider ID8641815

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Dose Chart


Duration Chart

4-HO-MPMI Duration Data
Onset15-60 minutes
Duration6-8 hours


Information made possible with:

  1. PsychonautWiki is a community-driven online encyclopedia that aims to document the field of psychonautics in a comprehensive, scientifically-grounded manner.
  2. Erowid is a non-profit educational & harm-reduction resource with 60 thousand pages of online information about psychoactive drugs
  3. PubChem National Center for Bio Informatics
  4. Chemspider is a free chemical structure database providing fast access to over 34 million structures, properties and associated information.
  5. Wikipedia

Additional APIs were used to construct this information. Thanks to ChemSpider, NCBI, PubChem etc.

Data is constantly updated so please check back later to see if there is any more available information on this substance.