Home/Chemicals/50-67-9

Chemical substance record

Serotonin

50-67-9C₁₀H₁₂N₂O176.219 g/mol

Organic/Inorganic Small MoleculeChEBI source record

A primary amino compound that is the 5-hydroxy derivative of tryptamine. — ChEBI

Safety references

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Identity & molecular properties

Source-linked values

CAS number	50-67-9	ChEBI ↗
Molecular formula	C₁₀H₁₂N₂O	ChEBI ↗
Molar mass	176.219 g/mol	ChEBI ↗
Monoisotopic mass	176.09496 Da	ChEBI ↗
Formal charge	0	ChEBI ↗
ChEBI identifier	CHEBI:28790	ChEBI ↗

Cross-source molecular data

PubChem

Molar mass	176.21 g/mol	PubChem ↗
Exact mass	176.094963011 Da	PubChem ↗
Computed XLogP	0.2	PubChem ↗
Topological polar surface area (Å²)	62	PubChem ↗
H-bond donors	3	PubChem ↗
H-bond acceptors	2	PubChem ↗
Rotatable bonds	2	PubChem ↗

PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.

Names & structural identifiers

Copy any identifier

Source preferred name

serotonin

IUPAC name

3-(2-aminoethyl)-1H-indol-5-ol

InChIKey

QZAYGJVTTNCVMB-UHFFFAOYSA-N

SMILES

NCCc1cnc2ccc(O)cc12

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

Names & synonyms

3-(2-aminoethyl)-1H-indol-5-ol

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

monoamine molecular messengerChEBI parent class · 25375 ↗tryptaminesChEBI parent class · 27162 ↗phenolsChEBI parent class · 33853 ↗primary amino compoundChEBI parent class · 50994 ↗hydroxyindolesChEBI parent class · 84729 ↗

phenols organic heterocyclic compound organic molecular entity

Roles recorded in ChEBI

neurotransmitterantiemeticmouse metabolitehuman metabolite

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Mass ↔ amount of substance

Calculated from sourced mass

Amount

Input unit

Equivalent amount

0.00567476 mol

Uses 176.219 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions

C

Carbon · 10 atoms

68.16%

N

Nitrogen · 2 atoms

15.90%

O

Oxygen · 1 atom

9.08%

H

Hydrogen · 12 atoms

6.86%

Calculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.

Research & patent references

Selected source associations

Serotonin regulates macrophage-mediated angiogenesis in a mouse model of colon cancer allografts. ↗Cancer research · 2008 Jul 1 · PMID 18593914

Annotation of the human adult urinary metabolome and metabolite identification using ultra high performance liquid chromatography coupled to a linear quadrupole ion trap-Orbitrap mass spectrometer. ↗Analytical chemistry · 2012 Aug 7 · PMID 22770225

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Sources & record history

Checked 27 Sep 2026

Identity, formula, mass, synonyms & ontologyEMBL-EBI ChEBI · CHEBI:28790

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

Additional molecular descriptorsNCBI PubChem · CID 5202 · retrieved 2026-09-27

PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.

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