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Annex II Entry 1347 13/08/2020

N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products

N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.

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Prohibited substance— Annex II, EU Regulation 1223/2009
Entry: 1347

Chemical identity and properties

PubChem 2D chemical structure for CAS 6410-41-9
CAS 6410-41-9PubChem CID 82169

Pigment Red 5

IUPAC name
N-(5-chloro-2,4-dimethoxyphenyl)-4-[[5-(diethylsulfamoyl)-2-methoxyphenyl]diazenyl]-3-hydroxynaphthalene-2-carboxamide
Molecular formula
C30H31ClN4O7S
Molecular weight
627.1 g/mol
Exact mass
626.1601982 Da
XLogP3
6.4
Topological polar surface area
148.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
10
Covalent units
1
Defined stereocentres
0

Also known as

PERMANENT CARMINE FB91OZU993LXCI 12490CARMINE RED FBEINECS 229-107-2PERMANENT CARMINE FB 01EC 229-107-2NAPHTHOL RED DEEP 10460
16 more reported names
2-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-((5-((diethylamino)sulfonyl)-2-methoxyphenyl)azo)-3-hydroxy-C.I. 124902-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-(2-(5-((diethylamino)sulfonyl)-2-methoxyphenyl)diazenyl)-3-hydroxy-2-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulfonyl]-2-methoxyphenyl]azo]-3-hydroxy-N-(5-CHLORO-2,4-DIMETHOXYPHENYL)-4-((5-((DIETHYLAMINO)SULFONYL)-2-METHOXYPHENYL)AZO)-3-HYDROXY-2-NAPHTHALENECARBOXAMIDEN-(5-Chloro-2,4-dimethoxyphenyl)-4-((5-((diethylamino)sulphonyl)-2-methoxyphenyl)azo)-3-hydroxynaphthalene-2-carboxamideN-(5-chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide2-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-[2-[5-[(diethylamino)sulfonyl]-2-methoxyphenyl]diazenyl]-3-hydroxy-RefChem:863198CI 12490 [INCI]2-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-((5-((diethylamino)sulfonyl)-2--methoxyphenyl)azo)-3-hydroxy-2-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-5-(diethylamino)sulfonyl-2-methoxyphenylazo-3-hydroxy-N-(5-Chloro-2,4-dimethoxyphenyl)-4-((5-((diethylamino)sulfonyl)-2--methoxyphenyl)azo)-3-hydroxy-2-naphthalenecarboxamideUNII-91OZU993LXC30H31ClN4O7SN-(5-Chloro-2,4-dimethoxyphenyl)-4-((5-(N,N-diethylsulfamoyl)-2-methoxyphenyl)diazenyl)-3-hydroxy-2-naphthamide
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Record details

Chemical name

N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products

Chemical / IUPAC name

N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide

Regulatory information

Regulation

(EC) 2013/344

See every entry this act set

Identified ingredients

Key data

CAS
6410-41-9
EC
229-107-2
Annex
II
Entry number
1347

Inventory links for N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products

Inventory Restriction reference
Ref 32707

CI 12490

CAS: 6410-41-9
EC: 229-107-2
Inventory Restriction reference
Ref 36570

PIGMENT RED 5

CAS: 6410-41-9
EC: 229-107-2

Direct matches are limited for this record, so nearby entries from Annex II are shown as well.

Annex IV 14
Shared CAS number

CI 12490

CAS: 6410-41-9
EC: 229-107-2

What Annex II means for N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products

N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products is listed as a prohibited substance under Annex II of EU Cosmetics Regulation 1223/2009 and must not be intentionally added. Article 17 separately addresses unintended small quantities that are technically unavoidable under good manufacturing practice and compatible with the Article 3 safety requirement.

Formulators must screen their ingredients and raw materials to ensure none contain this substance. Suppliers should provide documentation confirming absence when requested.

This record is linked to 2 CosIng inventory ingredients for name and identifier cross-reference. The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.

Compliance checklist

  • Verify this substance is absent from all raw materials and finished formulations.
  • Request absence confirmation or CoA from raw material suppliers.
  • Document the screening result in the Product Information File (PIF).

Frequently asked questions

Yes. N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products is listed in Annex II of EU Cosmetics Regulation 1223/2009 and is prohibited as an intentionally added cosmetic ingredient. Article 17 provides a narrow exception for unintended small quantities that are technically unavoidable under good manufacturing practice, provided the product remains safe under Article 3.

CAS 6410-41-9 is the unique numerical identifier assigned to N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products by the Chemical Abstracts Service. In cosmetic compliance work, the CAS number is used to cross-reference the substance across regulatory databases, raw material specifications and safety assessment reports. Multiple EU annex entries may share the same CAS number if the same substance appears under different conditions or in different annexes.

Use the INCI Checker tool on this site to paste your full ingredient list (INCI) and scan it against all Annex II–VI entries. The tool highlights any ingredients that match restricted, prohibited or allergen-flagged records. This is useful for rapid compliance screening of finished product formulas or raw material declarations.
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Source note for Annex II record N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products

This page summarizes one Annex II record for N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex II conditions for N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (Pigment Red 5; CI 12490) and its salts when used as a substance in hair dye products, but confirm any final regulatory decision against the current official annex wording and source files.

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