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CAS 4028-98-2 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 3319315/10/2010

DEQUALINIUM ACETATE

1,1'-(Decane-1,10-diyl)bis[4-amino-2-methylquinolinium] diacetate

DEQUALINIUM ACETATE 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 4028-98-2

CAS 4028-98-2PubChem CID 19939

Dequalinium Acetate

IUPAC name: 1-[10-(4-amino-2-methylquinolin-1-ium-1-yl)decyl]-2-methylquinolin-1-ium-4-amine diacetate

Molecular formula: C34H46N4O4
Molecular weight: 574.8 g/mol
Exact mass: 574.35190596 Da
Topological polar surface area: 140.0 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 6
Covalent units: 3
Defined stereocentres: 0

Also known as

Acetate, DequaliniumP8W4UX112S1,1'-(decane-1,10-diyl)bis[4-amino-2-methylquinolinium] diacetate1,1'-(Decane-1,10-diyl)bis(4-amino-2-methylquinolinium) diacetateQuinolinium, 1,1'-(1,10-decanediyl)bis(4-amino-2-methyl-, diacetateDequalinium DiacetateDiacetate, DequaliniumRefChem:132045

13 more reported names

Quinolinium, 1,1'-(1,10-decanediyl)bis(4-amino-2-methyl-), Diacetate223-712-5Dequadin acetateDecalinium acetate1-[10-(4-amino-2-methylquinolin-1-ium-1-yl)decyl]-2-methylquinolin-1-ium-4-amine;diacetateEINECS 223-712-51,1'-Decamethylenebis(4-aminoquinaldinium acetate)UNII-P8W4UX112S1,1'-(1,10-Decanediyl)bis(4-amino-2-methylquinolinium) diacetateQuinaldinium, 1,1'-decamethylenebis(4-amino-, diacetate1,1'-(decane-1,10-diyl)bis(4-amino-2-methylquinolin-1-ium) acetateDEQUALINIUM ACETATE [WHO-DD]1,1'-(Decane-1,10-diyl)bis(4-amino-2-methylquinolin-1-ium) diacetate

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External database identifiers

EPA DTXSID:DTXSID80193267

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 DEQUALINIUM ACETATE

INCI name

DEQUALINIUM ACETATE

Description

1,1'-(Decane-1,10-diyl)bis[4-amino-2-methylquinolinium] diacetate

Record provenance

Inventory reference: 33193
Imported identity: DEQUALINIUM ACETATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for DEQUALINIUM ACETATE

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Key data

CAS

4028-98-2

223-712-5

Restriction

—

Function

ANTIMICROBIAL: Preventing and/or slowing down microbial growth.
DEODORANT: Reducing and/or eliminating unpleasant odour. Contributing against the formation of malodour on body surfaces.

Official EU ingredient-name evidence

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

#8366 · DEQUALINIUM ACETATE

Ingredients with overlapping formulation functions

CURCUMA HEYNEANA ROOT POWDERDEODORANT, SKIN CONDITIONING

CYCLOPENTADECANONEDEODORANT, FRAGRANCE

DAUCUS CAROTA SATIVA LEAF/STEM EXTRACTANTIMICROBIAL, DEODORANT, SKIN CONDITIONING

DEFATTED RICE BRAN EXTRACTANTIOXIDANT, BLEACHING, DEODORANT

DEQUALINIUM CHLORIDEANTIMICROBIAL, ANTIPLAQUE, DEODORANT, ORAL CARE

DICHLORO-M-XYLENOLANTIMICROBIAL, DEODORANT

DICHLOROPHENEANTIMICROBIAL, DEODORANT

DIMETHICONE/PEG-15 CROSSPOLYMERDEODORANT, EMULSION STABILISING, SKIN CONDITIONING, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING

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 DEQUALINIUM ACETATE appears in the CosIng inventory

The CosIng inventory lists DEQUALINIUM ACETATE 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.

DEQUALINIUM ACETATE 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

DEQUALINIUM ACETATE 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, DEQUALINIUM ACETATE carries the following function designation(s):

CAS 4028-98-2 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 DEQUALINIUM ACETATE

This page reproduces the CosIng inventory entry for DEQUALINIUM ACETATE 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 DEQUALINIUM ACETATE 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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Tools & next steps

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