Chemical substance record

Muscimol

2763-96-4C₄H₆N₂O₂114.104 g/mol

Organic/Inorganic Small MoleculeChEBI source record

A member of the class of isoxazoles that is 1,2-oxazol-3(2H)-one substituted by an aminomethyl group at position 5. It has been isolated from mushrooms of the genus Amanita. — ChEBI

Safety references

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Identity & molecular properties

Source-linked values

CAS number	2763-96-4	ChEBI ↗
Molecular formula	C₄H₆N₂O₂	ChEBI ↗
Molar mass	114.104 g/mol	ChEBI ↗
Monoisotopic mass	114.04293 Da	ChEBI ↗
Formal charge	0	ChEBI ↗
ChEBI identifier	CHEBI:7035	ChEBI ↗

Cross-source molecular data

PubChem

Molar mass	114.10 g/mol	PubChem ↗
Exact mass	114.042927438 Da	PubChem ↗
Computed XLogP	-1.4	PubChem ↗
Topological polar surface area (Å²)	64.4	PubChem ↗
H-bond donors	2	PubChem ↗
H-bond acceptors	3	PubChem ↗
Rotatable bonds	1	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

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Source preferred name

muscimol

IUPAC name

5-(aminomethyl)-1,2-oxazol-3(2H)-one

InChIKey

ZJQHPWUVQPJPQT-UHFFFAOYSA-N

SMILES

NCc1cc(=O)no1

InChI

InChI=1S/C4H6N2O2/c5-2-3-1-4(7)6-8-3/h1H,2,5H2,(H,6,7)

Names & synonyms

5-(aminomethyl)-1,2-oxazol-3(2H)-one

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

Classification & relationships

ChEBI ontology

alkaloidChEBI parent class · 22315 ↗primary amino compoundChEBI parent class · 50994 ↗isoxazolesChEBI parent class · 55373 ↗

organic heterocyclic compound organic molecular entity

Roles recorded in ChEBI

oneirogenpsychotropic drugGABA agonistfungal 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

0.00876393 mol

Uses 114.104 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 · 4 atoms

42.11%

O

Oxygen · 2 atoms

28.04%

N

Nitrogen · 2 atoms

24.55%

H

Hydrogen · 6 atoms

5.30%

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

Na+/K+ ATPase regulates the expression and localization of acetylcholine receptors in a pump activity-independent manner. ↗Molecular and cellular neurosciences · 2008 Aug · PMID 18599311

Two types of chloride transporters are required for GABA(A) receptor-mediated inhibition in C. elegans. ↗The EMBO journal · 2011 May 4 · PMID 21427702

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Sources & record history

Checked 27 Sep 2026

Identity, formula, mass, synonyms & ontologyEMBL-EBI ChEBI · CHEBI:7035

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

Additional molecular descriptorsNCBI PubChem · CID 4266 · 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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