What does the restriction note for SOLVENT RED 23 mean?

The restriction field for SOLVENT RED 23 reads: II/1353 (Solvent Red 23; CI 26100: 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 85-86-9?

CAS 85-86-9 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 3815313/08/2020

SOLVENT RED 23

Q: How do I check if my formula contains SOLVENT RED 23?

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.

1-(4-(Phenylazo)phenylazo)-2-naphthol (CI 26100)

SOLVENT RED 23 is linked to 2 EU annex records on this page. Inventory note: II/1353 (Solvent Red 23; CI 26100: when used as a substance in hair dye products).

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Inventory details for SOLVENT RED 23

INCI name

SOLVENT RED 23

Description

1-(4-(Phenylazo)phenylazo)-2-naphthol (CI 26100)

Annex records for SOLVENT RED 23

Annex II Restriction reference

Entry 1353

1-((4-Phenylazo)phenylazo)-2-naphthol (Solvent Red 23; CI 26100) when used as a substance in hair d…

CAS: 85-86-9

EC: 201-638-4

Annex IV Identified ingredient

Entry 51

CI 26100 /SOLVENT RED 23

CAS: 85-86-9

EC: 201-638-4

Key data

CAS

85-86-9

201-638-4

Restriction

II/1353 (Solvent Red 23; CI 26100: when used as a substance in hair dye products)

Function

HAIR DYEING

How SOLVENT RED 23 appears in the CosIng inventory

The CosIng inventory lists SOLVENT RED 23 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.

SOLVENT RED 23 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

SOLVENT RED 23 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 SOLVENT RED 23 reads: "II/1353 (Solvent Red 23; CI 26100: 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, SOLVENT RED 23 carries the following function designation(s):

HAIR DYEING

CAS 85-86-9 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.

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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 SOLVENT RED 23

This page combines the CosIng inventory entry for SOLVENT RED 23 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 SOLVENT RED 23 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 SOLVENT RED 23 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 SOLVENT RED 23, its identifiers or nearby name variants.