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CAS 616-02-4 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 9743614/10/2019

CITRACONIC ANHYDRIDE

2,5-Furandione, 3-methyl-

CITRACONIC ANHYDRIDE 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 616-02-4

CAS 616-02-4PubChem CID 12012

Citraconic Anhydrides

IUPAC name: 3-methylfuran-2,5-dione

Molecular formula: C5H4O3
Molecular weight: 112.08 g/mol
Exact mass: 112.016043985 Da
XLogP3: 0.2
Topological polar surface area: 43.4 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

Anhydride, CitraconicAnhydrides, CitraconicMethylmaleic AnhydridesAnhydrides, Methylmaleic2 Methylmaleic AnhydrideAnhydride, 2-MethylmaleicRefChem:388886Citraconic anhydride

16 more reported names

2-Methylmaleic anhydride2,5-Furandione, 3-methyl-METHYLMALEIC ANHYDRIDE3-Methylmaleic anhydrideCitraconic acid anhydrideMonomethylmaleic anhydrideMaleic anhydride, methyl-3-methyl-2,5-dihydrofuran-2,5-dione3-Methyl-2,5-furandione2,5-Furanedione, 3-methylNSC 6182Anhydrid kyseliny citrakonove3-methyl-furan-2,5-dione105NP7PMXX.alpha.-Methylmaleic anhydrideNSC6182

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL398893
EPA DTXSID:DTXSID8060660
PubMed:22984898
PubMed:22485947
PubMed:22195954
PubMed:22163781
PubMed:22157935
PubMed:22114489
PubMed:21722647
PubMed:21559285
PubMed:21483686
PubMed:21445311
PubMed:21302408
PubMed:21080955

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 CITRACONIC ANHYDRIDE

INCI name

CITRACONIC ANHYDRIDE

Description

2,5-Furandione, 3-methyl-

Record provenance

Inventory reference: 97436
Imported identity: CITRACONIC ANHYDRIDE
Source update: 14/10/2019

European Commission CosIng source notes

Annex records for CITRACONIC ANHYDRIDE

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Key data

CAS

616-02-4

210-459-0

Restriction

—

Function

NOT REPORTED: No function currently reported.

Ingredients with overlapping formulation functions

CETETH-20 ITACONATENOT REPORTED

CETETH-20 METHACRYLATENOT REPORTED

CETYL METHACRYLATENOT REPORTED

CETYL TRIMETHOXYSILANENOT REPORTED

CITRATE BUFFERNOT REPORTED

CITRUS AURANTIUM AMARA FLOWER WAXNOT REPORTED

CITRUS GRANDISNOT REPORTED

CITRUS JUNOS FRUIT POWDERNOT REPORTED

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 CITRACONIC ANHYDRIDE appears in the CosIng inventory

The CosIng inventory lists CITRACONIC ANHYDRIDE 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.

CITRACONIC ANHYDRIDE 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

CITRACONIC ANHYDRIDE 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, CITRACONIC ANHYDRIDE carries the following function designation(s):

NOT REPORTED

CAS 616-02-4 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 CITRACONIC ANHYDRIDE

This page reproduces the CosIng inventory entry for CITRACONIC ANHYDRIDE 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 CITRACONIC ANHYDRIDE 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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