Is COPPER USNATE safe to use in EU cosmetics?

COPPER USNATE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

What other records share CAS 94246-73-8?

CAS 94246-73-8 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.

How do I check if my formula contains COPPER USNATE?

Use the INCI Checker to screen a full ingredient list across selected markets, or use the substance market comparison to review this identity across all supported market datasets.

InventoryRef 3303217/11/2016

COPPER USNATE

1,3-(2H,9bh)-Dibenzofurandione, 2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-, copper salt

COPPER USNATE 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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Exact external identity check

matched

One PubChem compound was retained because the exact CosIng name appears among its reported synonyms.

PubChem title: Copper usnate
IUPAC name: copper 4,8-diacetyl-2,9a-dimethyl-7,9-dioxodibenzofuran-1,3-diolate
Molecular formula: C18H14CuO7
Molecular weight: 405.8 g/mol
InChIKey: BJKWDVRCNOATJS-UHFFFAOYSA-L

Open exact PubChem record

Exact CosIng INCI name equals a PubChem synonym · Checked 2026-08-31

Inventory details for COPPER USNATE

INCI name

COPPER USNATE

Description

1,3-(2H,9bh)-Dibenzofurandione, 2,6-diacetyl-7,9-dihydroxy-8,9b-dimethyl-, copper salt

Record provenance

Inventory reference: 33032
Imported identity: COPPER USNATE
Source update: 17/11/2016

European Commission CosIng source notes

Annex records for COPPER USNATE

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Key data

CAS

94246-73-8

304-146-9

Restriction

—

Function

ANTIMICROBIAL: Preventing and/or slowing down microbial growth.

Official EU ingredient-name evidence

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

#7404 · COPPER USNATE

Ingredients with overlapping formulation functions

COMMIPHORA TENUIPETIOLATA GUM EXTRACTANTI-SEBUM, ANTIMICROBIAL

CONVALLARIA MAJALIS CALLUS CULTURE EXTRACTANTIMICROBIAL, SKIN CONDITIONING, SKIN PROTECTING

COPPER CARBONATE HYDROXIDEANTIMICROBIAL

COPPER CITRATEANTIMICROBIAL

COPROSMA GRANDIFOLIA LEAF/STEM EXTRACTANTIMICROBIAL

COPTIS JAPONICA EXTRACTANTI-SEBORRHEIC, ANTIMICROBIAL, HAIR CONDITIONING, SKIN CONDITIONING

COPTIS JAPONICA RHIZOME EXTRACTANTIMICROBIAL, SKIN CONDITIONING

CORIANDRUM SATIVUM FRUIT EXTRACTANTIMICROBIAL, FLAVOURING, 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 COPPER USNATE appears in the CosIng inventory

The CosIng inventory lists COPPER USNATE 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.

COPPER USNATE 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

COPPER USNATE 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, COPPER USNATE carries the following function designation(s):

ANTIMICROBIAL

CAS 94246-73-8 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 COPPER USNATE

This page reproduces the CosIng inventory entry for COPPER USNATE 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 COPPER USNATE 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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