What does the restriction note for BASIC BLUE 26 mean?

The restriction field for BASIC BLUE 26 reads: II/1340 (when used as a substance in hair dye products). This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What other records share CAS 2580-56-5?

CAS 2580-56-5 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 3206212/08/2020

BASIC BLUE 26

Q: How do I check if my formula contains BASIC BLUE 26?

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.

[4-[[4-Anilino-1-naphthyl][4-(dimethylamino)phenyl]methylene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium chloride (CI 44045); N-[4-[[4-(Dimethylamino)Phenyl][4-(Phenylamino)-1-Naphthalenyl]Methylene]-2,5-Cyclohexadien…

BASIC BLUE 26 is linked to 2 EU annex records on this page. Inventory note: II/1340 (when used as a substance in hair dye products).

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Inventory details for BASIC BLUE 26

INCI name

BASIC BLUE 26

Description

[4-[[4-Anilino-1-naphthyl][4-(dimethylamino)phenyl]methylene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium chloride (CI 44045);
N-[4-[[4-(Dimethylamino)Phenyl][4-(Phenylamino)-1-Naphthalenyl]Methylene]-2,5-Cyclohexadien-1-ylidene]-N-Methyl-2-Methanaminium Chloride (PCPC technical name)

Annex records for BASIC BLUE 26

Annex II Restriction reference

Entry 1340

[4-[[4-Anilino-1-naphthyl][4-(dimethylamino)phenyl]methylene]cyclohexa-2,5-dien-1-ylidene]dimethyla…

CAS: 2580-56-5

EC: 219-943-6

Annex IV Identified ingredient

Entry 69

CI 44045

CAS: 2580-56-5

EC: 219-943-6

Key data

CAS

2580-56-5

219-943-6

Restriction

II/1340 (when used as a substance in hair dye products)

Function

HAIR DYEING

How BASIC BLUE 26 appears in the CosIng inventory

The CosIng inventory lists BASIC BLUE 26 as a cosmetic ingredient and this page links it to 2 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 BLUE 26 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 BLUE 26 appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for BASIC BLUE 26 reads: "II/1340 (when used as a substance in hair dye products)". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, BASIC BLUE 26 carries the following function designation(s):

HAIR DYEING

CAS 2580-56-5 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 BLUE 26

This page combines the CosIng inventory entry for BASIC BLUE 26 with 2 linked Annex II–VI records from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research BASIC BLUE 26 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 BLUE 26 and any linked EU annex restrictions or allergen flags.

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Search similar ingredients

Find other inventory ingredients and annex entries related to BASIC BLUE 26, its identifiers or nearby name variants.