What is the NOAEL for Thymidine?
Thymidine has 5 NOAEL studies in the database. The lowest reported value is 22 mg/m3 via inhalation in Human. Source: ToxValDB_GESTIS_DNEL.
NOAEL Data
REACH Registered
Cosmetic Ingredient
Thymidine
Also known as: EINECS 200-070-4, 5-Methyldeoxyurindine, beta-D-Ribofuranoside, thymine-1 2-deoxy-, Thyminedeoxyriboside, Thymine-2-deoxyriboside (+15 more)
CAS 50-89-5
Thymidine (CAS 50-89-5) is a chemical substance. Key regulatory status: REACH registered, 4 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, ECHA REACH.
SOURCE
noael studies public
NOAEL studies
5
SOURCE
chemical inventory jurisdictions
Regulatory lists
4
SOURCE
eu clp annex vi
GHS signal
Not classified
Chemical Identity
CAS, identifiers, formula, and alternate names for the matched substance record.
SOURCE
DSSTox identifiers
26 fields
Name
Thymidine
CAS Number
50-89-5
DTXSID
DTXSID5023661
Molecular Formula
C10H14N2O5
InChI Key
IQFYYKKMVGJFEH-XLPZGREQSA-N
Monoisotopic Mass
242.090272
Synonyms
EINECS 200-070-45-Methyldeoxyurindinebeta-D-Ribofuranoside, thymine-1 2-deoxy-ThyminedeoxyribosideThymine-2-deoxyribosideThymine-2-desoxyriboside1-(2-Deoxy-beta-D-erythro-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione2,4(1H,3H)-Pyrimidinedione, 1-(2-deoxy-beta-D-erythro-pentofuranosyl)-5-methyl-UNII-VC2W18DGKR1-(2-Deoxy-b-D-erythro-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione1-(2-Deoxy-beta-delta-erythro-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione1-(2-deoxy-beta-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione
Functional Uses
Industrial and product-use categories associated with this substance.
SOURCE
EPA CPDat
1 records
Softener and conditioner
Regulatory Lists
Inventory, screening, and regulatory list matches from public chemical databases.
SOURCE
EPA CPDat
4 records
| List | Keyword | Source |
|---|---|---|
| pharmaceutical | US International Trade Commission | CPCat |
| active_ingredient; animal_products; Europe; pharmaceutical; residue | EU | CPCat |
| Canada; pharmaceutical | DrugBank | DrugBank |
| Canada; pharmaceutical | DrugBank | DrugBank |
NOAEL Studies
Toxicology endpoints rendered from public NOAEL study rows.
SOURCE
NOAEL studies
Showing 5 of 5 studies
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| =22 | mg/m3 | DNEL systemic | inhalation | Human | ToxValDB_GESTIS_DNEL |
| VC2W18DGKR | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| VC2W18DGKR | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| VC2W18DGKR | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| VC2W18DGKR | UNII | FDA UNII substance identifier | - | - | openFDA substances |
Showing 5 of 5 studies
REACH Registration
Registration status from the ECHA REACH registered substances database.
SOURCE
ECHA (EU)
1 records
| Status | Name | EC Number | Link |
|---|---|---|---|
| Registered | Thymidine | 200-070-4 | ECHA overview → |
Cosmetic Safety Profile
Same-CAS cosmetic ingredient record for cross-vertical context.
SOURCE
CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Skin Conditioning
Pharmaceutical Data
Same-CAS pharmaceutical records from drug and bioactivity sources.
SOURCE
EMBL-EBI ChEMBL
DOXRIBTIMINE
ChEMBL Phase
2
Adverse Events
0
Bioactivity
6
Frequently Asked Questions
What regulatory lists include Thymidine?
Thymidine appears on 3 regulatory/inventory lists including pharmaceutical, active_ingredient; animal_products; Europe; pharmaceutical; residue, Canada; pharmaceutical. Source: EPA CPDat.
Is Thymidine used in cosmetics?
Yes, Thymidine is also indexed as a cosmetic ingredient under the name Thymidine. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.
Where does the safety data for Thymidine come from?
Safety data is sourced from EPA ToxValDB, EPA CPDat, EPA DSSTox, ECHA REACH, CosIng / Ingredients DB, ChEMBL / DailyMed. All data traces to primary regulatory sources and is updated from official government databases.
Is Thymidine used outside industrial chemicals?
Thymidine also appears in cosmetics, pharmaceutical databases.