What other records share CAS 616-91-1?

CAS 616-91-1 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 7397915/10/2010

ACETYL CYSTEINE

Q: How do I check if my formula contains ACETYL CYSTEINE?

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.

Acetylcysteine

ACETYL CYSTEINE 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 ACETYL CYSTEINE

INCI name

ACETYL CYSTEINE

Description

Acetylcysteine

Annex records for ACETYL CYSTEINE

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Key data

CAS

616-91-1

210-498-3

Restriction

—

Function

ANTIOXIDANT SKIN CONDITIONING

How ACETYL CYSTEINE appears in the CosIng inventory

The CosIng inventory lists ACETYL CYSTEINE 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.

ACETYL CYSTEINE is also tagged with 2 cosmetic functions 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

ACETYL CYSTEINE 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, ACETYL CYSTEINE carries the following function designation(s):

CAS 616-91-1 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 ACETYL CYSTEINE

This page reproduces the CosIng inventory entry for ACETYL CYSTEINE 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 ACETYL CYSTEINE 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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