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Annex III Entry 191 14/08/2020

CURRY RED

Disodium 6-hydroxy-5-[(2-methoxy-4-sulphonato-m-tolyl)azo]naphthalene-2-sulphonate (15); CI 16035. (see note 17)

CURRY RED is listed in Annex III and may only be used under the conditions shown in this record. Maximum concentration in this record: 0.4%.

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Restricted substance— Annex III, EU Regulation 1223/2009
Max conc.: 0.4%
Entry: 191

Chemical identity and properties

PubChem 2D chemical structure for CAS 25956-17-6
CAS 25956-17-6PubChem CID 33258

E129

Allura red AC is a naphthalenesulfonic acid. — ChEBI

IUPAC name
disodium;6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate
Molecular formula
C18H14N2Na2O8S2
Molecular weight
496.4 g/mol
Exact mass
495.99869632 Da
Topological polar surface area
185.0 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
10
Covalent units
3
Defined stereocentres
0

Also known as

RefChem:1084024Allura Red ACAllura RedAllura red AC dyeFood red 17Fancy RedFood Red No. 40C.I. Food Red 17
16 more reported names
FD&C Red No. 40Allura Red 40Japan Red 40Curry redALLURA RED C.I.16035Japan Food Red No. 40CI 16035FDC Red 40 dyeHSDB 7260Red 40WZB9127XOARed No. 40FD and C Red No. 40Allura Red AC (E 129)Disodium 6-hydroxy-5-((6-methoxy-4-sulfo-m-tolyl)azo)-2-naphthalenesulfonateFD & C Red no. 40
Open full PubChem recordPubChem annotations3D structure image
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

Maximum concentration

0.4%

Product type

Hair dye substance in non-oxidative hair dye products

INCI glossary name

CURRY RED

Chemical name

Disodium 6-hydroxy-5-[(2-methoxy-4-sulphonato-m-tolyl)azo]naphthalene-2-sulphonate (15); CI 16035. (see note 17)

Chemical / IUPAC name

Disodium 6-hydroxy-5-[(2-methoxy-4-sulphonato-m-tolyl)azo]naphthalene-2-sulphonate (15); CI 16035.

Regulatory information

Regulation

(EC) 2013/344

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SCCS opinions

Identified ingredients

Key data

CAS
25956-17-6
EC
247-368-0
Annex
III
Entry number
191

Inventory links for CURRY RED

Inventory Restriction reference
Ref 32725

CI 16035

CAS: 25956-17-6
EC: 247-368-0
Inventory Restriction reference
Ref 33088

CURRY RED

CAS: 25956-17-6
EC: 247-368-0
Annex IV 32
Shared CAS number

CI 16035

CAS: 25956-17-6
EC: 247-368-0
Annex III 190
Shared product type

ACID BLUE 9

CAS: 3844-45-9 - 2650-18-2 - 68921-42-6
EC: 223-339-8 - 220-168-0 - 272-939-6
Annex III 192
Shared product type

ACID RED 18

CAS: 2611-82-7 - 12227-64-4
EC: 220-036-2 - 235-438-3
Annex III 193
Shared product type

ACID RED 52

CAS: 3520-42-1
EC: 222-529-8
Annex III 195
Shared product type

ACID BLUE 62

CAS: 4368-56-3
EC: 224-460-9
Annex III 204
Shared product type

DIHYDROXYINDOLINE

CAS: 29539-03-5 - 138937-28-7
EC: - - 421-170-6

What Annex III means for CURRY RED

CURRY RED is a restricted substance under Annex III of EU Cosmetics Regulation 1223/2009. Its use in cosmetics is only permitted under the specific conditions set out in the entry above, including applicable concentration limits, product type restrictions and required warning statements.

When including this substance in a formulation, all conditions — maximum concentration, product scope and warning labels — must be met simultaneously. Compliance with one condition does not override the others.

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

  • Ensure formulation concentration does not exceed: 0.4%
  • Confirm product type compatibility: Hair dye substance in non-oxidative hair dye products
  • Document conditions of use in the Product Information File (PIF).

Frequently asked questions

CURRY RED is listed in Annex III of EU Regulation 1223/2009 as a restricted substance. It may only be used under the conditions specified in the entry, including any maximum concentration, product type limitation and required warning statements shown above.

CAS 25956-17-6 is the unique numerical identifier assigned to CURRY RED 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.

The maximum concentration of 0.4% applies to the concentration of the substance in the ready-to-use cosmetic product. When the substance is supplied as part of a blend or mixture, the calculation must account for the contribution of all sources in the formulation. The combined concentration must not exceed the stated limit.

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 III record CURRY RED

This page summarizes one Annex III record for CURRY RED from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.

Use this record page to review Annex III conditions for CURRY RED, but confirm any final regulatory decision against the current official annex wording and source files.

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