PRASTERONE

Also known as: DHEA, 5,6-Didehydroisoandrosterone, 4-08-00-00994, BRN 2058110, Caswell No. 051F (+13 more)

PRASTERONE (CAS 53-43-0) is a cosmetic cosmetic ingredient functioning as Skin Conditioning. EU Regulation 1223/2009 status: restricted, max II/37. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and pharmaceutical data.

View industrial chemical safety profile for CAS 53-43-0 →

Auto-generated CPSR Part A draft with source citations
Function
Skin Conditioning
Safety Rating
MODERATE

Chemistry & Identifiers

Formula
C19H28O2
MW
288.4 g/mol
EC Number
200-175-5
PubChem CID
5881
IUPAC Name
(3S,8R,9S,10R,13S,14S)-3-hydroxy-10,13-dimethyl-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-one
InChIKey
FMGSKLZLMKYGDP-USOAJAOKSA-N

Regulatory Status

EU EU Status restricted
EU Max Conc. II/37
US US Status Not specifically regulated

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Intermediate
Tonnage Band
Intermediate use only
Substance Type
SUBSTANCE
SVHC Candidate
No

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Safety (1)
Endocrine Disruptors
Potential endocrine disrupting compound
Source: NORMAN Suspect List Exchange

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Pharmaceutical Softener and conditioner

Expert Verdict

Expert safety assessment and concern-level summary for PRASTERONE.

Regulatory Flags

cosing-sourced eu-restricted skin-conditioning needs-enrichment

Known Synonyms

DHEA 5,6-Didehydroisoandrosterone 4-08-00-00994 BRN 2058110 Caswell No. 051F 5,6-Dehydroisoandrostorone EINECS 200-175-5 EPA Pesticide Chemical Code 126510 Epiandrosterone, 5-dehydro- UNII-459AG36T1B Gynodian (+)-Dehydroisoandrosterone (2R,5S,15S)-5-hydroxy-2,15-dimethyltetracyclo[8.7.0.02,7.011,15]heptadec-7-en-14-one (3-beta)-3-Hydroxyandrost-5-en-17-one (3beta)-3-hydroxy-Androst-5-en-17-one (3beta,16alpha)-3,16-dihydroxy-androst-5-en-17-one 3-beta-Hydroxy-5-androsten-17-one 3-beta-Hydroxyandrost-5-en-17-one

Chemical Function

Softener and conditioner Pharmaceutical

Regulatory Lists

Canada; consumer_product; Substances in Products - Canada (4/2014) Canada; consumer_product; Substances in Products - Canada (4/2014) pharmaceutical Canada; pharmaceutical Canada; pharmaceutical Canada; pharmaceutical pharmaceutical; prohibited pharmaceutical; prohibited pharmaceutical

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

Compound
PRASTERONE
ChEMBL ID
CHEMBL90593
Max Phase
4
Adverse Event Associations
832
View full pharmaceutical profile →

Frequently Asked Questions

Is PRASTERONE safe in cosmetics?

PRASTERONE has a safety rating of "MODERATE" in our database. EU status: restricted.

Is PRASTERONE allowed in the EU?

PRASTERONE EU regulatory status: restricted. Maximum allowed concentration: II/37. This is based on EU Regulation 1223/2009 and its amendments.

What does PRASTERONE do in cosmetics?

PRASTERONE functions as: Skin Conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 53-43-0.

Is PRASTERONE used outside cosmetics?

PRASTERONE also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does PRASTERONE have different safety status in cosmetics vs industrial chemicals?

PRASTERONE is classified GHS Danger (H302, H312, H315, H319, H332, H335, H351, H360) in the chemicals database but is restricted in EU cosmetics at max II/37.

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