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Heterocyclic compounds

Psilocin

Also known as Psilocine, 4-Hydroxy-N,N-dimethyltryptamine, Psilocyn

CAS 520-53-6Formula C12H16N2OMolar mass 204.27 g/molEC 208-296-5
GHS signal word: Warning. Pictograms: Harmful or irritant Prohibited, not for trade
Why it is not for trade
Psilocin chemical structure, C12H16N2O, CAS 520-53-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
520-53-6
Formula
C12H16N2O
Molar mass
204.27 g/mol
EC number
208-296-5
HS code
293399
Category
Heterocyclic compounds

What is Psilocin?

Plain description, key identifiers and synonyms

Psilocin is a tryptamine alkaloid that is N,N-dimethyltryptamine carrying an additional hydroxy substituent at position 4. A hallucinogenic alkaloid isolated in trace amounts from Psilocybe mushrooms (also known as Teonancatl or "magic mushrooms"). It has a role as a hallucinogen, a serotonergic agonist, a drug metabolite, a fungal metabolite and a human xenobiotic metabolite. It is a member of phenols, a tryptamine alkaloid, a tertiary amino compound and a member of hydroxyindoles. It is functionally related to a N,N-dimethyltryptamine. It is a conjugate base of a psilocinium.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-[2-(dimethylamino)ethyl]-1H-indol-4-ol
CAS number
520-53-6 CAS number cross-checked
EC number
208-296-5
Molecular formula
C12H16N2O
UNII
CMS88KUW0G
MDL number
MFCD00079228
InChIKey
SPCIYGNTAMCTRO-UHFFFAOYSA-N
InChI
InChI=1S/C12H16N2O/c1-14(2)7-6-9-8-13-10-4-3-5-11(15)12(9)10/h3-5,8,13,15H,6-7H2,1-2H3
SMILES (canonical and isomeric)
CN(C)CCC1=CNC2=C1C(=CC=C2)O

Synonyms

  • Psilocine
  • 4-Hydroxy-N,N-dimethyltryptamine
  • Psilocyn
  • Psilotsin
  • 3-[2-(Dimethylamino)ethyl]-1H-indol-4-ol
  • 3-(2-(Dimethylamino)ethyl)indol-4-ol
  • N,N-Dimethyl-4-Hydroxytryptamine
  • 3-(2-(Dimethylamino)ethyl)-1H-indol-4-ol
  • (3-(2-dimethylamino)ethyl)indol-4-ol
  • 1H-Indol-4-ol, 3-[2-(dimethylamino)ethyl]-
  • 3-[2-(dimethylamino)ethyl]-1~{H}-indol-4-ol
  • Indol-4-ol, 3-(2-(dimethylamino)ethyl)-
  • Psilocin (1.0 mg/mL in Methanol)
  • Indol-4-ol, 3-[2-(dimethylamino)ethyl]-
  • DEA No. 7438
  • 4-Hydroxy DMT-d10
  • Magic mushrooms (Salt/Mix)
  • 5-22-12-00014 (Beilstein Handbook Reference)
  • Psilocin/psilocybin (Salt/Mix)
  • Spciygntamctro-uhfffaoysa-
  • Psilocin (1 mg/mL in Methanol)
  • Psilocin, 1mg/ml in Acetonitrile
  • CX 59
  • 3-[2-(Dimethylamino)ethyl]-Indol-4-ol
  • 3-[2-(Dimethylamino)ethyl]-1H-indol-4-ol #
Show all 28 synonyms
  • 3-[2-[Di(methyl-d3)amino]ethyl]-1H-indol-4-ol
  • Psilocin, vial of 5 mg, certified reference material
  • 3-(2-Dimethylaminoethyl)-4-hydroxyindole, N,N-Dimethyl-4-hydroxytryptamine

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
204.27 g/molcalc.
Exact mass
204.1263 Dacalc.
LogP (octanol/water)
1.98calc.
Topological polar surface area
39.26 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
15calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.33calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc2[nH]ccc2c1

c1ccc2[nH]ccc2c1

2 rings, 9 atoms, the Indole ring system.

25,097 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Psilocin suppliers

Trading restrictions apply to this substance

Psychotropic substance

Psilocin is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Listing and enquiries are not allowed for this substance.

Reference: UN Convention on Psychotropic Substances 1971 Schedule I

Our policy on controlled substances

Psilocin price

Indicative price range per kg from live supplier offers

Prices are not shown for prohibited substances.

Uses and applications

What the substance is used for, by industry and function

Use classes: Pharmaceuticals.

Pharmacological actions

  • Hallucinogens

Roles

  • animal metabolite
  • central nervous system drug
  • drug metabolite
  • eukaryotic metabolite
  • fungal metabolite
  • hallucinogen
  • human metabolite
  • human xenobiotic metabolite
  • mammalian metabolite
  • metabolite
  • neurotransmitter agent
  • pharmaceutical
  • psychotropic drug
  • serotonergic agonist
  • serotonergic drug
  • xenobiotic metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

Psychotropic substance

Psilocin is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Listing and enquiries are not allowed for this substance.

Reference: UN Convention on Psychotropic Substances 1971 Schedule I

Our policy on controlled substances

Controls

  • US DEA controlled substance or listed chemical
  • Controlled psychotropic substance

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Psilocin is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Psilocin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Psilocin, based on the data on this page

What is Psilocin?

Psilocin is a tryptamine alkaloid that is N,N-dimethyltryptamine carrying an additional hydroxy substituent at position 4. A hallucinogenic alkaloid isolated in trace amounts from Psilocybe mushrooms (also known as Teonancatl or "magic mushrooms").

What is the CAS number of Psilocin?

The CAS registry number of Psilocin is 520-53-6.

What is the molecular formula and weight of Psilocin?

The molecular formula of Psilocin is C12H16N2O and its molar mass is 204.27 g/mol.

What is Psilocin used for?

Use classes: Pharmaceuticals.

Is Psilocin hazardous?

Psilocin carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Psilocin?

Psilocin is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Can I buy Psilocin on CompoundList?

No. Psilocin is on our prohibited list, so listings, quotes and messages for it are disabled. This page is kept for information only.

Guides for buyers

Practical guides that help when you source, ship or handle Psilocin

Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page

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