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CAS 55589-62-3 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 7942915/10/2010

POTASSIUM ACESULFAME

6-Methyl-1,2,3-oxathiazin-4(3H)-one 2,2-dioxide, potassium salt

POTASSIUM ACESULFAME 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 55589-62-3

CAS 55589-62-3PubChem CID 11074431

Acesulfame Potassium

Acesulfame k is a sulfuric acid derivative. — ChEBI

IUPAC name: potassium 6-methyl-2,2-dioxo-1-oxa-2lambda6-thia-3-azanidacyclohex-5-en-4-one

Molecular formula: C4H4KNO4S
Molecular weight: 201.24 g/mol
Exact mass: 200.94981027 Da
Topological polar surface area: 69.8 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 5
Covalent units: 2
Defined stereocentres: 0

Also known as

Acesulfame KPotassium acesulfameOtizonPotassium acesulfamateAcesulfame potassium saltSunett dAcesulfam-KINS-950

16 more reported names

E 950INS NO.950Hoe 095E-950NSC-7601041,2,3-Oxathiazin-4(3H)-one, 6-methyl-, 2,2-dioxide, potassium saltRefChem:914951259-715-323OV73Q5G9potassium 6-methyl-4-oxo-4H-1,2,3-oxathiazin-3-ide 2,2-dioxideAcesulfame (potassium)Acesulfame-K6-Methyl-1,2,3-oxathiazin-4(3H)-one 2,2-dioxide potassium saltAcesulfame-potassiumAcesulfame potassium (NF)potassium;6-methyl-2,2-dioxo-1-oxa-2lambda6-thia-3-azanidacyclohex-5-en-4-one

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:184415
ChEMBL:CHEMBL1351474
EPA DTXSID:DTXSID1030606

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 POTASSIUM ACESULFAME

INCI name

POTASSIUM ACESULFAME

Description

6-Methyl-1,2,3-oxathiazin-4(3H)-one 2,2-dioxide, potassium salt

Record provenance

Inventory reference: 79429
Imported identity: POTASSIUM ACESULFAME
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for POTASSIUM ACESULFAME

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Key data

CAS

55589-62-3

259-715-3

Restriction

—

Function

FRAGRANCE: Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.

Official EU ingredient-name evidence

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

#22539 · POTASSIUM ACESULFAME

Ingredients with overlapping formulation functions

POLYCITRONELLOL T-BUTYL ETHERSKIN CONDITIONING - EMOLLIENT; FILM FORMING; HAIR CONDITIONING; FRAGRANCE; VISCOSITY CONTROLLING

POLYGONUM MULTIFLORUM ROOT WATERFLAVOURING, FRAGRANCE, PERFUMING, SKIN CONDITIONING

POLYGONUM ODORATUM OILFRAGRANCE

PONGAMOLFRAGRANCE

POTASSIUM GLYCYRRHETINATEFRAGRANCE, SKIN CONDITIONING

POTASSIUM PALMITOYL ASCORBYL GLUCOSIDEFRAGRANCE, HUMECTANT, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

POTASSIUM SORBATEFRAGRANCE, PRESERVATIVE

PREGNADIENOLFRAGRANCE, PERFUMING

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 POTASSIUM ACESULFAME appears in the CosIng inventory

The CosIng inventory lists POTASSIUM ACESULFAME 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.

POTASSIUM ACESULFAME 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

POTASSIUM ACESULFAME 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, POTASSIUM ACESULFAME carries the following function designation(s):

FRAGRANCE

CAS 55589-62-3 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 POTASSIUM ACESULFAME

This page reproduces the CosIng inventory entry for POTASSIUM ACESULFAME 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 POTASSIUM ACESULFAME 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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