Is QUASSIN safe to use in EU cosmetics?

QUASSIN 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.

InventoryRef 7923315/10/2010

QUASSIN

Q: How do I check if my formula contains QUASSIN?

Use the INCI Checker tool on CosIng Checker to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

(3aS,6aR,7aS,8S,11aS,11bS,11cS)-1,3a,4,5,6a,7,7a,8,11,11a,11b,11c-Dodecahydro-2,10-dimethoxy-3,8,11a,11c-tetramethyldibenzo[de,g]chromene-1,5,11-trione

QUASSIN is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Inventory details for QUASSIN

INCI name

QUASSIN

Description

(3aS,6aR,7aS,8S,11aS,11bS,11cS)-1,3a,4,5,6a,7,7a,8,11,11a,11b,11c-Dodecahydro-2,10-dimethoxy-3,8,11a,11c-tetramethyldibenzo[de,g]chromene-1,5,11-trione

Annex records for QUASSIN

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Key data

CAS

76-78-8 / 75991-65-0

200-985-9

Restriction

—

Function

DENATURANT

How QUASSIN appears in the CosIng inventory

The CosIng inventory lists QUASSIN 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.

QUASSIN 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

QUASSIN 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, QUASSIN carries the following function designation(s):

DENATURANT

CAS 76-78-8 / 75991-65-0 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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Use the INCI Checker tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

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Source note for QUASSIN

This page reproduces the CosIng inventory entry for QUASSIN 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 QUASSIN 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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