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Central nervous system drugs

Serotonin

Also known as 5-Hydroxytryptamine, 3-(2-Aminoethyl)-1H-indol-5-ol, Enteramine

CAS 50-67-9Formula C10H12N2OMolar mass 176.22 g/molEC 200-058-9
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Serious health hazard 62 suppliers listed Drug substance
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Serotonin chemical structure, C10H12N2O, CAS 50-67-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
50-67-9
Formula
C10H12N2O
Molar mass
176.22 g/mol
EC number
200-058-9
HS code
293399
Category
Central nervous system drugs

What is Serotonin?

Plain description, key identifiers and synonyms

Serotonin is a primary amino compound that is the 5-hydroxy derivative of tryptamine. It has a role as a neurotransmitter, a mouse metabolite and a human metabolite. It is a monoamine molecular messenger, a member of tryptamines, a member of phenols, a primary amino compound and a member of hydroxyindoles. It is functionally related to a tryptamine. It is a conjugate base of a serotonin(1+).

Serotonin is a monoamine neurotransmitter.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
3-(2-aminoethyl)-1H-indol-5-ol
CAS number
50-67-9 CAS number cross-checkedOther or deprecated CAS: 1094000-36-8
EC number
200-058-9
Molecular formula
C10H12N2O
UNII
333DO1RDJY
MDL number
MFCD00055054
InChIKey
QZAYGJVTTNCVMB-UHFFFAOYSA-N
InChI
InChI=1S/C10H12N2O/c11-4-3-7-6-12-10-2-1-8(13)5-9(7)10/h1-2,5-6,12-13H,3-4,11H2
SMILES (canonical and isomeric)
C1=CC2=C(C=C1O)C(=CN2)CCN

Synonyms

  • 5-Hydroxytryptamine
  • 3-(2-Aminoethyl)-1H-indol-5-ol
  • Enteramine
  • Thrombotonin
  • Thrombocytin
  • Serotonine
  • 1H-Indol-5-ol, 3-(2-aminoethyl)-
  • Hippophaine
  • 3-(beta-Aminoethyl)-5-hydroxyindole
  • 3-(2-Aminoethyl)-1H-indol-5-o
  • Serotonin (Human)
  • 5 Hydroxytryptamine
  • Serotonin 1543
  • Antemovis
  • Ds substance
  • Hippophain
  • 5-Hta
  • Antemoqua
  • Substance DS
  • Substanz DS
  • Tryptamine, 5-hydroxy-
  • 3-(2-Aminoethyl)indol-5-ol
  • Indol-5-ol, 3-(2-aminoethyl)-
  • Enteramin
  • 5-Hydroxy-3-(beta-aminoethyl)indole
Show all 36 synonyms
  • 3-(2-Amino-ethyl)-1H-indol-5-ol
  • Lisinopril Impurity 21
  • 5-Hydroxytryptamine, free base
  • Serotonin base
  • 5-hydroxytryptamin
  • 5-Hydroxytriptamine
  • 5-Hydroxyltryptamine
  • 5-hydroxy-tryptamine
  • 1H-Indol-5-ol,3-(2-aminoethyl)-
  • Enteramin, Enteramine
  • 5-hydroxyl tryptamine

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
176.22 g/molcalc.
Exact mass
176.095 Dacalc.
LogP (octanol/water)
1.37calc.
Topological polar surface area
62.04 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
13calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.2calc.
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
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H301Toxic if swallowed.
  • H361Suspected of damaging fertility or the unborn child.
Precautionary statements (10)
  • P203Obtain, read and follow all safety instructions before use.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P318If exposed or concerned, get medical advice.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P405Store locked up.
  • 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

Serotonin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 62 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

62 suppliers in 12 countries

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Serotonin price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Industries and functions

Pharmacological actions

  • Serotonin Receptor Agonists

Roles

  • animal metabolite
  • antiemetic
  • eukaryotic metabolite
  • human metabolite
  • mammalian metabolite
  • metabolite
  • molecular messenger
  • mouse metabolite
  • neurotransmitter
  • pharmaceutical

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

Frequently asked questions

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

What is Serotonin?

Serotonin is a primary amino compound that is the 5-hydroxy derivative of tryptamine. It has a role as a neurotransmitter, a mouse metabolite and a human metabolite. It is a monoamine molecular messenger, a member of tryptamines, a member of phenols, a primary amino compound and a member of hydroxyindoles.

What is the CAS number of Serotonin?

The CAS registry number of Serotonin is 50-67-9. Other or deprecated CAS numbers: 1094000-36-8.

What is the molecular formula and weight of Serotonin?

The molecular formula of Serotonin is C10H12N2O and its molar mass is 176.22 g/mol.

What is Serotonin used for?

Known uses and roles of Serotonin include cns agents in pharmaceuticals, animal metabolite, antiemetic, eukaryotic metabolite, human metabolite and 7 more.

Is Serotonin hazardous?

Serotonin carries the GHS signal word "Danger". Main hazards: toxic if swallowed, suspected of damaging fertility or the unborn child. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Serotonin?

Serotonin 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 Serotonin?

CompoundList lists 62 suppliers of Serotonin in China, United States, United Kingdom, Germany and 8 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Serotonin?

Suppliers quote Serotonin 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 Serotonin

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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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