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CAS 50-89-5

CAS 50-89-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 50-89-5
CAS 50-89-5PubChem CID 5789

Thymidine

Thymidine is a pyrimidine 2'-deoxyribonucleoside having thymine as the nucleobase. It has a role as a metabolite, a mouse metabolite, an Escherichia coli metabolite and a human metabolite. It is functionally related to a thymine. It is an enantiomer of a telbivudine. — ChEBI

IUPAC name
1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
Molecular formula
C10H14N2O5
Molecular weight
242.23 g/mol
Exact mass
242.09027155 Da
XLogP3
-1.2
Topological polar surface area
99.1 Ų
Hydrogen-bond donors
3
Hydrogen-bond acceptors
5
Covalent units
1
Defined stereocentres
3

Also known as

2'-DeoxythymidineDThydThymidinThymine-2-desoxyriboside5-Methyl-2'-deoxyuridineThyminedeoxyribosideDeoxyribothymidineDoxribtimine
16 more reported names
dThd2'-thymidine1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methyl-1,2,3,4-tetrahydropyrimidine-2,4-dionethymine 2'-deoxyribosideVC2W18DGKR2'-deoxy-5-methyluridineCHEBI:17748NSC-21548MT-1621 COMPONENT 2'-DEOXYTHYMIDINE1-(2-deoxy-beta-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione2' Deoxythymidine1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl)-5-methylpyrimidine-2,4-dione1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl)-5-methyl-1,2,3,4-tetrahydropyrimidine-2,4-dioneRefChem:189836200-070-4deoxythymidine
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 50-89-5

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How CAS 50-89-5 is used on this site

CAS 50-89-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 50-89-5 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.