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InventoryRef 3371015/10/2010

DI-T-BUTYLHYDROQUINONE

2,5-Di-tert-butylhydroquinone

DI-T-BUTYLHYDROQUINONE 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 88-58-4
CAS 88-58-4PubChem CID 2374

2,5-Di-tert-butylhydroquinone

2,5-di-tert-butylbenzene-1,4-diol is a member of the class of hydroquinones that is benzene-1,4-diol substituted by tert-butyl groups at position 2 and 5. — ChEBI

IUPAC name
2,5-ditert-butylbenzene-1,4-diol
Molecular formula
C14H22O2
Molecular weight
222.32 g/mol
Exact mass
222.161979940 Da
XLogP3
4.6
Topological polar surface area
40.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

2,5-Di-tert-butylbenzene-1,4-diolDTBHQDibugDi-t-butylhydroquinoneDybugSantovar O2,5-Di-tert-butylquinolNonflex Alba
16 more reported names
Naugard 451Antage DBHNocrac NS 71,4-Benzenediol, 2,5-bis(1,1-dimethylethyl)-2,5-Di-tert-butyl-1,4-benzenediol2,5-Di-tert-butyl-1,4-hydroquinonedi-tert-butylhydroquinone1,4-Dihydroxy-2,5-di-tert-butylbenzene2,5-Di-tert-butyl-1,4-benzohydroquinoneHYDROQUINONE, 2,5-DI-tert-BUTYL-26XK13B61BCHEBI:41094tBuBHQ2,5-di-t-butylquinol2,5-di(tert-butyl)-1,4-benzohydroquinoneRefChem:444201
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

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 DI-T-BUTYLHYDROQUINONE

INCI name

DI-T-BUTYLHYDROQUINONE

Description

2,5-Di-tert-butylhydroquinone

Record provenance

Inventory reference
33710
Imported identity
DI-T-BUTYLHYDROQUINONE
Source update
15/10/2010
European Commission CosIng source notes
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Key data

CAS
88-58-4
EC
201-841-8
Restriction
—
Function
ANTIOXIDANT
Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.

Official EU ingredient-name evidence

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

#9526 · DI-T-BUTYLHYDROQUINONE

Ingredients with overlapping formulation functions

DEOXYCHOLOYL TRIPEPTIDE-1ANTIOXIDANT; HAIR CONDITIONING; SKIN PROTECTING; SKIN CONDITIONING - HUMECTANT; SKIN CONDITIONING -…
DESCHAMPSIA ANTARCTICA LEAF EXTRACTANTIOXIDANT, UV ABSORBER
DETONULA PUMILA EXTRACTANTIOXIDANT, SKIN CONDITIONING
DI-T-BUTYL HYDROXYPHENYLAMINO BISOCTYLTHIOTRIAZINEANTIOXIDANT
DIACETYLCURCUMINANTIOXIDANT, BLEACHING, SKIN CONDITIONING, SKIN PROTECTING, UV ABSORBER
DIAMINOHEXYL TRIHYDROXYBENZAMIDE HCLANTIOXIDANT
DIAMMONIUM EDTAANTIOXIDANT, CHELATING
DIAMYLHYDROQUINONEANTIOXIDANT

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 chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How DI-T-BUTYLHYDROQUINONE appears in the CosIng inventory

The CosIng inventory lists DI-T-BUTYLHYDROQUINONE 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.

DI-T-BUTYLHYDROQUINONE is also tagged with 1 cosmetic function 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

DI-T-BUTYLHYDROQUINONE 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, DI-T-BUTYLHYDROQUINONE carries the following function designation(s):

CAS 88-58-4 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 DI-T-BUTYLHYDROQUINONE

This page reproduces the CosIng inventory entry for DI-T-BUTYLHYDROQUINONE 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 DI-T-BUTYLHYDROQUINONE 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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