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CAS 92-88-6 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 8352715/10/2010

DIHYDROXYBIPHENYL

Biphenyl-4,4'-diol

DIHYDROXYBIPHENYL is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 92-88-6

CAS 92-88-6PubChem CID 7112

4,4'-Dihydroxybiphenyl

Biphenyl-4,4'-diol is a member of the class of hydroxybiphenyls that is biphenyl with hydroxy groups at positions 4 and 4'. It derives from a hydride of a biphenyl. — ChEBI

IUPAC name: 4-(4-hydroxyphenyl)phenol

Molecular formula: C12H10O2
Molecular weight: 186.21 g/mol
Exact mass: 186.068079557 Da
XLogP3: 3.6
Topological polar surface area: 40.5 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

4,4'-BIPHENOL4,4'-Biphenyldiol[1,1'-Biphenyl]-4,4'-diolBiphenyl-4,4'-diolp,p'-Biphenolp,p'-Diphenol4,4'-dihydroxydiphenylAntioxidant DOD

16 more reported names

4,4'-Dioxydiphenyl4,4'-Bisphenolp,p'-DihydroxybiphenylASM DOD(1,1'-Biphenyl)-4,4'-diolDihydroxybiphenylNSC-8711GM-W06GM-W07R8994A0904CHEBI:343674,4'-diphenyldiol44'BP cpdRefChem:506655202-200-54,4'-Diphenol

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:34367
ChEMBL:CHEMBL76398
EPA DTXSID:DTXSID1029120
PubMed:24266771
PubMed:22515182
PubMed:22160344
PubMed:22087767
PubMed:22085246
PubMed:21626582
PubMed:21522331
PubMed:21413891
PubMed:21256504
PubMed:20403158
PubMed:20347520
PubMed:19528508

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

Inventory details for DIHYDROXYBIPHENYL

INCI name

DIHYDROXYBIPHENYL

Description

Biphenyl-4,4'-diol

Record provenance

Inventory reference: 83527
Imported identity: DIHYDROXYBIPHENYL
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for DIHYDROXYBIPHENYL

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Key data

CAS

92-88-6

202-200-5

Restriction

—

Function

BLEACHING: Bleaching or lightening the shade of hair and/or skin.
SKIN PROTECTING: Helping to avoid harmful effects to the skin from external factors.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#8710 · DIHYDROXYBIPHENYL

Ingredients with overlapping formulation functions

DIACETYLCURCUMINANTIOXIDANT, BLEACHING, SKIN CONDITIONING, SKIN PROTECTING, UV ABSORBER

DIFLUOROCYCLOHEXYLOXYPHENOLANTIOXIDANT, BLEACHING

DIHEXYLOXY CYCLOHEXANEBLEACHING

DIHYDROXYBENZYLIDENE SUCCINIMIDEANTIOXIDANT, BLEACHING, REDUCING, SKIN PROTECTING

DIPENTYLOXY CYCLOHEXANEBLEACHING

DOCOSAHEXENOIC/DOCOSAPENTENOIC/OLEIC/PALMITIC TRIGLYCERIDEBLEACHING, SKIN CONDITIONING, SKIN PROTECTING

DRACOCEPHALUM RUYSCHIANA CALLUS EXTRACTANTIOXIDANT, BLEACHING, SKIN PROTECTING

ENKLEIA THORELII ROOT EXTRACTANTIOXIDANT, BLEACHING, SKIN CONDITIONING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How DIHYDROXYBIPHENYL appears in the CosIng inventory

The CosIng inventory lists DIHYDROXYBIPHENYL as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

DIHYDROXYBIPHENYL is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

DIHYDROXYBIPHENYL is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, DIHYDROXYBIPHENYL carries the following function designation(s):

CAS 92-88-6 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for DIHYDROXYBIPHENYL

This page reproduces the CosIng inventory entry for DIHYDROXYBIPHENYL from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research DIHYDROXYBIPHENYL and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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