Is BASIC BROWN 16 safe to use in EU cosmetics?

BASIC BROWN 16 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 26381-41-9?

CAS 26381-41-9 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 3207015/10/2010

BASIC BROWN 16

Q: How do I check if my formula contains BASIC BROWN 16?

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.

[8-[(p-Aminophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride

BASIC BROWN 16 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 BASIC BROWN 16

INCI name

BASIC BROWN 16

Description

[8-[(p-Aminophenyl)azo]-7-hydroxy-2-naphthyl]trimethylammonium chloride

Annex records for BASIC BROWN 16

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Key data

CAS

26381-41-9

247-640-9

Restriction

—

Function

HAIR DYEING

How BASIC BROWN 16 appears in the CosIng inventory

The CosIng inventory lists BASIC BROWN 16 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.

BASIC BROWN 16 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

BASIC BROWN 16 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, BASIC BROWN 16 carries the following function designation(s):

HAIR DYEING

CAS 26381-41-9 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 BASIC BROWN 16

This page reproduces the CosIng inventory entry for BASIC BROWN 16 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 BASIC BROWN 16 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 BASIC BROWN 16 and any linked EU annex restrictions or allergen flags.

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