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Heterocyclic building blocks

5-Methoxy-alpha-ethyltryptamine

Also known as 1-(5-methoxy-1H-indol-3-yl)butan-2-amine, 5-MeO-alpha-ET, 5-MeO-AET

CAS 4765-10-0Formula C13H18N2OMolar mass 218.30 g/molEC 111-515-6
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment
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5-Methoxy-alpha-ethyltryptamine chemical structure, C13H18N2O, CAS 4765-10-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4765-10-0
Formula
C13H18N2O
Molar mass
218.30 g/mol
EC number
111-515-6
HS code
293399
Category
Heterocyclic building blocks

What is 5-Methoxy-alpha-ethyltryptamine?

Plain description, key identifiers and synonyms

5-Methoxy-alpha-ethyltryptamine is a chemical substance with the molecular formula C13H18N2O and a molar mass of 218.30 g/mol. Its CAS registry number is 4765-10-0. The IUPAC name is 1-(5-methoxy-1H-indol-3-yl)butan-2-amine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-(5-methoxy-1H-indol-3-yl)butan-2-amine
CAS number
4765-10-0 CAS number cross-checked
EC number
111-515-6
Molecular formula
C13H18N2O
UNII
QCQ6JFX5NL
InChIKey
JHTPCKWBFLMJMQ-UHFFFAOYSA-N
InChI
InChI=1S/C13H18N2O/c1-3-10(14)6-9-8-15-13-5-4-11(16-2)7-12(9)13/h4-5,7-8,10,15H,3,6,14H2,1-2H3
SMILES (canonical and isomeric)
CCC(CC1=CNC2=C1C=C(C=C2)OC)N

Synonyms

  • 1-(5-methoxy-1H-indol-3-yl)butan-2-amine
  • 5-MeO-alpha-ET
  • 5-MeO-AET
  • alpha,O-diethylserotonin
  • 1H-Indole-3-ethanamine, alpha-ethyl-5-methoxy-
  • alpha-ethyl-5-methoxy-1H-indole-3-ethanamine
  • 5-Methoxy-|A-ethyltryptamine
  • 1-(5-methoxy-1H-indol-3-yl)-2-butanamine
  • 5-Methoxy--ethyltryptamine
  • 5-methoxy-??-Ethyltryptamine
  • ?-ethyl-5-methoxy-1H-indole-3-ethanamine
  • A-ethyl-5-methoxy-1H-indole-3-ethanamine
  • 1-[(5-methoxy-1H-indol-3-yl)-methyl]-propyl-amine

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
218.30 g/molcalc.
Exact mass
218.1419 Dacalc.
LogP (octanol/water)
2.46calc.
Topological polar surface area
51.04 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
4calc.
Heavy atoms
16calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.39calc.
Formal charge
0calc.
Stereocentres
1calc.
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
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (15)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • 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

5-Methoxy-alpha-ethyltryptamine suppliers

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5-Methoxy-alpha-ethyltryptamine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 5-Methoxy-alpha-ethyltryptamine 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 5-Methoxy-alpha-ethyltryptamine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 5-Methoxy-alpha-ethyltryptamine, based on the data on this page

What is 5-Methoxy-alpha-ethyltryptamine?

5-Methoxy-alpha-ethyltryptamine is a chemical substance with the molecular formula C13H18N2O and a molar mass of 218.30 g/mol. Its CAS registry number is 4765-10-0. The IUPAC name is 1-(5-methoxy-1H-indol-3-yl)butan-2-amine.

What is the CAS number of 5-Methoxy-alpha-ethyltryptamine?

The CAS registry number of 5-Methoxy-alpha-ethyltryptamine is 4765-10-0.

What is the molecular formula and weight of 5-Methoxy-alpha-ethyltryptamine?

The molecular formula of 5-Methoxy-alpha-ethyltryptamine is C13H18N2O and its molar mass is 218.30 g/mol.

What is 5-Methoxy-alpha-ethyltryptamine used for?

Known uses and roles of 5-Methoxy-alpha-ethyltryptamine include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 5-Methoxy-alpha-ethyltryptamine hazardous?

5-Methoxy-alpha-ethyltryptamine carries the GHS signal word "Warning". Main hazards: causes skin irritation, may cause an allergic skin reaction, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 5-Methoxy-alpha-ethyltryptamine?

5-Methoxy-alpha-ethyltryptamine 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.

Where can I buy 5-Methoxy-alpha-ethyltryptamine?

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What is the price of 5-Methoxy-alpha-ethyltryptamine?

Suppliers quote 5-Methoxy-alpha-ethyltryptamine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 5-Methoxy-alpha-ethyltryptamine

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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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