Is THIOXANTHONE safe to use in EU cosmetics?

THIOXANTHONE 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 492-22-8?

CAS 492-22-8 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.

InventoryRef 9734728/10/2019

THIOXANTHONE

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

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.

9H-Thioxanthen-9-one

THIOXANTHONE 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 THIOXANTHONE

INCI name

THIOXANTHONE

Description

9H-Thioxanthen-9-one

Annex records for THIOXANTHONE

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Key data

CAS

492-22-8

207-749-4

Restriction

—

Function

NOT REPORTED

How THIOXANTHONE appears in the CosIng inventory

The CosIng inventory lists THIOXANTHONE 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.

THIOXANTHONE 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

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

NOT REPORTED

CAS 492-22-8 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.

View CAS records

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 THIOXANTHONE

This page reproduces the CosIng inventory entry for THIOXANTHONE 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 THIOXANTHONE 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

Check your formula

Scan a full INCI list to detect THIOXANTHONE and any linked EU annex restrictions or allergen flags.

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Search similar ingredients

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