Diphenolic Acid

Also known as: 4,4-Bis(4-hydroxyphenyl)valeric acid, Benzenebutanoic acid, 4-hydroxy-gamma-(4-hydroxyphenyl)-gamma-methyl-, Benzenebutanoic acid, 4-hydroxy-.gamma.-(4-hydroxyphenyl)-.gamma.-methyl-, 4,4-Bis(p-hydroxyphenyl)pentanoic acid, 4,4-Bis(4-hydroxyphenyl)pentanoic acid (+5 more)

INCI: DIPHENOLIC ACID

Diphenolic Acid (CAS 126-00-1) is a cosmetic cosmetic ingredient functioning as Chemical intermediate; structurally 4,4-bis(4-hydroxyphenyl)pentanoic acid (BPA. EU Regulation 1223/2009 status: permitted. 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 126-00-1 →

Auto-generated CPSR Part A draft with source citations
Function
Chemical intermediate; structurally 4,4-bis(4-hydroxyphenyl)pentanoic acid (BPA analog)
Safety Rating
POOR

Chemistry & Identifiers

Formula
C17H18O4
MW
286.32 g/mol
PubChem CID
67174
IUPAC Name
4,4-bis(4-hydroxyphenyl)pentanoic acid
InChIKey
VKOUCJUTMGHNOR-UHFFFAOYSA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Not listed as a cosmetic ingredient in 21 CFR

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

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Diphenolic Acid.

Calculate MoS for your specific formulation with the MoS Calculator.

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
Viscosity modifier
Regulatory List Membership (1)
FDA Indirect Food Contact Additives

Expert Verdict

Expert safety assessment and concern-level summary for Diphenolic Acid.

Regulatory Flags

endocrine_disruptor

Known Synonyms

4,4-Bis(4-hydroxyphenyl)valeric acid Benzenebutanoic acid, 4-hydroxy-gamma-(4-hydroxyphenyl)-gamma-methyl- Benzenebutanoic acid, 4-hydroxy-.gamma.-(4-hydroxyphenyl)-.gamma.-methyl- 4,4-Bis(p-hydroxyphenyl)pentanoic acid 4,4-Bis(4-hydroxyphenyl)pentanoic acid gamma,gamma-Bis(p-hydroxyphenyl)valeric acid 4,4-Bis(p-hydroxyphenyl)valeric acid EINECS 204-763-2 NSC 3371 UNII-2SIZ2CO5L3

Chemical Function

Viscosity modifier

Regulatory Lists

Indirect additives food contact (10/2018)

Australian Status

AICIS status: listed

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.

ChEMBL ID
CHEMBL1325931
View full pharmaceutical profile →

Frequently Asked Questions

Is Diphenolic Acid safe in cosmetics?

Diphenolic Acid has a safety rating of "POOR" in our database. EU status: permitted. US status: permitted.

Is Diphenolic Acid allowed in the EU?

Diphenolic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Diphenolic Acid do in cosmetics?

Diphenolic Acid functions as: Chemical intermediate; structurally 4,4-bis(4-hydroxyphenyl)pentanoic acid (BPA analog). It is classified as a cosmetic ingredient in our database. CAS number: 126-00-1.

Is Diphenolic Acid used outside cosmetics?

Diphenolic Acid 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.

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