Is BASIC VIOLET 16 safe to use in EU cosmetics?

BASIC VIOLET 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 6359-45-1?

CAS 6359-45-1 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.

How do I check if my formula contains BASIC VIOLET 16?

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 5482415/10/2010

BASIC VIOLET 16

3H-Indolium, 2-[2-[4-(diethylamino)phenyl]ethenyl]-1,3,3-trimethyl-chloride (CI 48013)

BASIC VIOLET 16 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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Chemical identity and properties

PubChem 2D chemical structure for CAS 6359-45-1

CAS 6359-45-1PubChem CID 6433480

Basic Violet 16

IUPAC name: N,N-diethyl-4-[(E)-2-(1,3,3-trimethylindol-1-ium-2-yl)ethenyl]aniline chloride

Molecular formula: C23H29ClN2
Molecular weight: 368.9 g/mol
Exact mass: 368.2019266 Da
Topological polar surface area: 6.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 2
Defined stereocentres: 0

Also known as

C.I. BASIC VIOLET 162-[2-[4-(DIETHYLAMINO)PHENYL]VINYL]-1,3,3-TRIMETHYL-3H-INDOLIUM CHLORIDECCRIS 9488EINECS 228-799-33H-Indolium, 2-(2-(4-(diethylamino)phenyl)ethenyl)-1,3,3-trimethyl-, chloride3H-Indolium, 2-[2-[4-(diethylamino)phenyl]ethenyl]-1,3,3-trimethyl-, chloride (1:1)2-(2-(4-(Diethylamino)phenyl)vinyl)-1,3,3-trimethyl-3H-indolium chloride3H-Indolium, 2-(2-(4-(diethylamino)phenyl)ethenyl)-1,3,3-trimethyl-, chloride (1:1)

9 more reported names

3H-Indolium, 2-[2-[4-(diethylamino)phenyl]ethenyl]-1,3,3-trimethyl-, chlorideRefChem:5610943H-Indolium, 2-2-4-(diethylamino)phenylethenyl-1,3,3-trimethyl-, chloride228-799-3N,N-diethyl-4-[(E)-2-(1,3,3-trimethylindol-1-ium-2-yl)ethenyl]aniline;chlorideBasicViolet16CI BASIC VIOLET 16AS-136302-[(e)-2-(4-diethylaminophenyl)-1-ethenyl]-1,3,3-trimeth-yl-3h-indolium chloride

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL5307026

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for BASIC VIOLET 16

INCI name

BASIC VIOLET 16

Description

3H-Indolium, 2-[2-[4-(diethylamino)phenyl]ethenyl]-1,3,3-trimethyl-chloride (CI 48013)

Record provenance

Inventory reference: 54824
Imported identity: BASIC VIOLET 16
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for BASIC VIOLET 16

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Key data

CAS

6359-45-1

228-799-3

Restriction

—

Function

HAIR DYEING: Imparting color to hair. Hair dyeing preparations may be temporary, semi-permanent, or permanent, depending on the length of time the colorant remains on the hair.

Official EU ingredient-name evidence

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

#3101 · BASIC VIOLET 16

Ingredients with overlapping formulation functions

BASIC RED 76HAIR DYEING

BASIC VIOLET 1HAIR DYEING

BASIC VIOLET 11:1HAIR DYEING

BASIC VIOLET 14HAIR DYEING

BASIC VIOLET 2HAIR DYEING

BASIC VIOLET 3HAIR DYEING

BASIC VIOLET 4HAIR DYEING

BASIC YELLOW 11HAIR DYEING

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 BASIC VIOLET 16 appears in the CosIng inventory

The CosIng inventory lists BASIC VIOLET 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 VIOLET 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 VIOLET 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 VIOLET 16 carries the following function designation(s):

HAIR DYEING

CAS 6359-45-1 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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Source note for BASIC VIOLET 16

This page reproduces the CosIng inventory entry for BASIC VIOLET 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 VIOLET 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

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