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Chemical substance record

Thalidomide

50-35-1C13H10N2O4258.233 g/mol
Organic/Inorganic Small MoleculeChEBI source record

A racemate comprising equimolar amounts of R- and S-thalidomide. — ChEBI

Safety references

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Identity & molecular properties

Source-linked values
CAS number50-35-1ChEBI ↗
Molecular formulaC13H10N2O4ChEBI ↗
Molar mass258.233 g/molChEBI ↗
Monoisotopic mass258.06406 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:9513ChEBI ↗

Names & structural identifiers

Copy any identifier
thalidomide
rac-2-(2,6-dioxopiperidin-3-yl)-1H-isoindole-1,3(2H)-dione

Names & synonyms

DistavalK-17rac-2-(2,6-dioxopiperidin-3-yl)-1H-isoindole-1,3(2H)-dioneSedalisSoftenontalidomidaTalimolthalidomidum

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

Classification & relationships

ChEBI ontology
racemateChEBI parent class · 60911 ↗

Roles recorded in ChEBI

antiviral agentantifibrotic agentanti-inflammatory druganalgesicantineoplastic agentanticonvulsantimmunosuppressive agentsedativeleprostatic drugangiogenesis inhibitor

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
Equivalent amount
0.00387247 mol

Uses 258.233 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 · 13 atoms
60.47%
O
Oxygen · 4 atoms
24.78%
N
Nitrogen · 2 atoms
10.85%
H
Hydrogen · 10 atoms
3.90%

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
Thalidomide as an anti-angiogenic agent in relapsed gliomas. ↗Journal of neuro-oncology · 2001 Jan · PMID 11349879
Efficacy of thalidomide therapy for extramedullary relapse of myeloma following allogeneic transplantation. ↗Bone marrow transplantation · 2001 Dec · PMID 11803357
GB768821 · Patent reference ↗Patent cross-reference supplied by ChEBI. Association alone does not establish claim scope.
US2012142734 · Patent reference ↗Patent cross-reference supplied by ChEBI. Association alone does not establish claim scope.
WO2013100657 · Patent reference ↗Patent cross-reference supplied by ChEBI. Association alone does not establish claim scope.
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Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:9513

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

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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