NOAEL Data REACH Registered Cosmetic Ingredient

Ursodeoxycholic acid

Also known as: Ursodiol, Ursodesoxycholic acid, Ursocholic acid, deoxy-, Cholan-​24-​oic acid, 3,​7-​dihydroxy-​, (3α,​5β,​7β)​-, (3α,5β,7β)-3,7-Dihydroxycholan-24-oic acid (+14 more)

CAS 128-13-2

Ursodeoxycholic acid (CAS 128-13-2) is a chemical substance. Key regulatory status: REACH registered, 7 regulatory/inventory lists, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, ECHA REACH.

View cosmetic safety profile for Ursodiol →

SOURCE noael studies public
NOAEL studies
5
SOURCE chemical inventory jurisdictions
Regulatory lists
7
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 25 fields
Name
Ursodeoxycholic acid
CAS Number
128-13-2
DTXSID
DTXSID6023731
Molecular Formula
C24H40O4
InChI Key
RUDATBOHQWOJDD-UZVSRGJWSA-N
Monoisotopic Mass
392.29266
Synonyms
UrsodiolUrsodesoxycholic acidUrsocholic acid, deoxy-Cholan-​24-​oic acid, 3,​7-​dihydroxy-​, (3α,​5β,​7β)​-(3α,5β,7β)-3,7-Dihydroxycholan-24-oic acid4-10-00-01604BRN 32198883-alpha,7-beta-Dihydroxy-5-beta-cholanoic acidEINECS 204-879-37-beta-Hydroxylithocholic acid17-beta-(1-Methyl-3-carboxypropyl)etiocholane-3-alpha,7-beta-diolPeptarom

Functional Uses

Industrial and product-use categories associated with this substance.

SOURCE EPA CPDat 2 records
HumectantSoftener and conditioner

Regulatory Lists

Inventory, screening, and regulatory list matches from public chemical databases.

SOURCE EPA CPDat 7 records
ListKeywordSource
Canada; consumer_product; Substances in Products - Canada (4/2014)Government of CanadaCPCat
pharmaceuticalUS International Trade CommissionCPCat
Canada; pharmaceuticalDrugBankDrugBank
Canada; pharmaceuticalDrugBankDrugBank
pharmaceuticalFDAUnited States Food and Drug Administration (FDA)
pharmaceuticalFDAUnited States Food and Drug Administration (FDA)
pharmaceuticalFDAUnited States Food and Drug Administration (FDA)

NOAEL Studies

Toxicology endpoints rendered from public NOAEL study rows.

SOURCE NOAEL studies Showing 5 of 5 studies
ValueUnitEndpointRouteSpeciesSource
724L30Y2QRUNIIFDA UNII substance identifier--openFDA substances
724L30Y2QRUNIIFDA UNII substance identifier--openFDA substances
724L30Y2QRUNIIFDA UNII substance identifier--openFDA substances
724L30Y2QRUNIIFDA UNII substance identifier--openFDA substances
=4600mg/kg bwLD50oralRatNTP_ICE_acute_oral

Showing 5 of 5 studies

REACH Registration

Registration status from the ECHA REACH registered substances database.

SOURCE ECHA (EU) 1 records
StatusNameEC NumberLink
RegisteredUrsodeoxycholic acid204-879-3ECHA overview →

Cosmetic Safety Profile

Same-CAS cosmetic ingredient record for cross-vertical context.

SOURCE CosIng / Ingredients DB
EU Status
permitted
Max
-
Category
Skin Conditioning
View full cosmetic safety profile →

Pharmaceutical Data

Same-CAS pharmaceutical records from drug and bioactivity sources.

SOURCE EMBL-EBI ChEMBL URSODIOL
ChEMBL Phase
4
Adverse Events
3285
Bioactivity
15
View full pharmaceutical profile →

Frequently Asked Questions

What is the NOAEL for Ursodeoxycholic acid?

Ursodeoxycholic acid has 5 NOAEL studies in the database. The lowest reported value is 724L30Y2QR UNII. Source: openFDA substances.

What regulatory lists include Ursodeoxycholic acid?

Ursodeoxycholic acid appears on 3 regulatory/inventory lists including Canada; consumer_product; Substances in Products - Canada (4/2014), pharmaceutical, Canada; pharmaceutical. Source: EPA CPDat.

Is Ursodeoxycholic acid used in cosmetics?

Yes, Ursodeoxycholic acid is also indexed as a cosmetic ingredient under the name Ursodiol. 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 Ursodeoxycholic acid 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 Ursodeoxycholic acid used outside industrial chemicals?

Ursodeoxycholic acid also appears in cosmetics, pharmaceutical databases.