Official EU label nameGlossary entry 6371
CI 16255
This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.
Global evidence snapshot
The resolved identity has matching regulatory evidence in 6 of 13 indexed market datasets: 7 country records and 1 EU Annex records. Every result and evidence gap is listed below.
Markets checked
13
Markets with evidence
6
Evidence gaps
7
Resolved identifiers
4
A missing local match is not permission, approval or proof of safety. It means no strong identity match was resolved in that indexed dataset.
Resolved substance identity
CAS:2611-82-712227-64-4
EC:220-036-2235-438-3
Ingredient index records:
CI 16255
Cosmetic functions: COLORANT, HAIR DYEING
Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
Inventory restriction note: IV/35 (CI 16255) III/192 (Acid Red 18; Acid Red 18 Aluminum Lake)
ACID RED 18
Cosmetic functions: HAIR DYEING
Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate (CI 16255)
Inventory restriction note: III/192 (Acid Red 18; Acid Red 18 Aluminum Lake) IV/35 (CI 16255)
9 matched or reported names
CI 16255ACID RED 18Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and its insoluble barium, strontium and zirconium lakes, salts and pigmentsAcid Red 18;Acid Red 18 Aluminum LakeTrisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulfonate and its insoluble barium, strontium and zirconium lakes, salts and pigments (Acid Red 18)Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4′,6,8-trisulfonate and aluminium lake* (Acid Red 18; Acid Red 18 aluminium lake; CI 16255)Trisodium 1-(1-naphthylazo)-2- hydroxynaphthalene-4′,6,8- trisulphonate and aluminium lake Acid Red 18 CAS No 2611-82-7 Acid Red 18 Aluminum lake CAS No 12227-64-4 CI 16255Trisodium 1-(1-naphth- ylazo)-2-hydroxynaphthal- ene- -trisulphonate and 4′,6,8 15 aluminium lake ( ) Acid Red 18 (CAS 2611-82-7) Acid Red 18 Aluminum lake (CAS 12227-64-4) CI 16255and aluminium 15 lake ( )Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and aluminium lake (Cl 16255) (see note 17).
Regulatory evidence in all 13 markets
Open each matched record for its scope, concentration, conditions, warnings and official source version.
Swipe or scroll horizontally to see dataset coverage and next actions.
| Market | Result | Records | Dataset | Meaning / next action |
|---|---|---|---|---|
| European Union EU | Conditional positive-list match | 1Open record 1 | Complete annex dataset Regulation (EC) 1223/2009 consolidated to 1 May 2026 | Review every linked record and exact conditions. |
| Great Britain GB | Restricted | 2Open record 1Open record 2 | Complete consolidated annex dataset GB retained Regulation 1223/2009 schedules, effective 15 August 2026 | Review every linked record and exact conditions. |
| Canada CA | No local match | 0 | Complete Hotlist snapshot Health Canada Cosmetic Ingredient Hotlist, 13 August 2025 | The Hotlist is an administrative compliance tool, not an exhaustive safety approval list. |
| New Zealand NZ | Restricted | 2Open record 1Open record 2 | Complete schedules dataset Cosmetic Products Group Standard schedules effective 1 January 2026 | Review every linked record and exact conditions. |
| ASEAN ASEAN | Restricted | 1Open record 1 | Complete regional annex dataset ASEAN Cosmetic Directive annexes 2026-1, 22 June 2026 | Review every linked record and exact conditions. |
| China CN | No local match | 0 | Complete prohibited catalogues plus official-source workflow NMPA 2021 banned catalogues plus dynamic IECIC List I/List II system current since 2025 | IECIC listing is not blanket approval; absence may require the new cosmetic ingredient route, and restrictions are checked separately. |
| Japan JP | No local match | 0 | Complete Standards appendices dataset MHLW Standards for Cosmetics official English source and Japanese amendments checked for the imported snapshot | The Japanese text and subsequent notices are canonical; no local match is not a product-compliance conclusion. |
| South Korea KR | No local match | 0 | Complete current appendix dataset MFDS Notice 2026-19, effective 18 March 2026 | Korean source wording is canonical and other positive lists/notices may still apply to the formulation. |
| United States US | No local match | 0 | Complete enumerated federal ingredient rules eCFR Title 21 issue date 27 August 2026 | FDA has no general approved-cosmetic-ingredient catalogue; absence from these sections is not approval or proof of safety. |
| Australia AU | No local match | 0 | Complete cosmetic-relevant Poisons Standard subset plus official workflow Therapeutic Goods (Poisons Standard—June 2026) Instrument 2026 | An AICIS Inventory match is not cosmetic approval; no Inventory match can indicate a new, exempted, reported or confidential introduction. |
| Brazil BR | No local match | 0 | Complete prohibited dataset plus current restricted-list workflow ANVISA RDC 1.029/2026 and RDC 1.030/2026, published 15 June 2026 | RDC 1.030/2026 amends rather than replaces the prohibited baseline, and the second restricted-list revision was still under consultation in July 2026. |
| India IN | Restricted | 1Open record 1 | Complete current Part 2 dataset plus official workflow for Parts 1, 3 and 4 Cosmetics Rules 2020 plus current BIS IS 4707 parts (1:2020, 2:2025, 3:2025, 4:2022) | Review every linked record and exact conditions. |
| Saudi Arabia SA | Restricted | 1Open record 1 | Complete official list index SFDA live prohibited/restricted lists, snapshot 30 August 2026 | Review every linked record and exact conditions. |
No market rows match this filter.
Matching market records and conditions
Great Britain
GB retained Regulation 1223/2009 schedules, effective 15 August 2026Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and its insoluble barium, strontium and zirconium lakes, salts and pigmentsPermitted list with conditions
Purity criteria as set out in Commission Directive 95/45/EC (E 124)
GB Cosmetics Regulation, Annex IV, entry 35 · 2026-08-15
Acid Red 18;Acid Red 18 Aluminum LakeRestricted
Hair dye substance in non-oxidative hair dye products · 0,5
%
GB Cosmetics Regulation, Annex III, entry 192 · 2026-08-15
New Zealand
Cosmetic Products Group Standard schedules effective 1 January 2026Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulfonate and its insoluble barium, strontium and zirconium lakes, salts and pigments (Acid Red 18)Permitted list with conditions
Colour index: 16255 · CAS: 2611-82-7 · Colour: Red · Other limitations: E 124
Schedule 6, reference 35, source row 37 · effective-2026-01-01
Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4′,6,8-trisulfonate and aluminium lake* (Acid Red 18; Acid Red 18 aluminium lake; CI 16255)Restricted
Product scope: Hair dye substance in non-oxidative hair dye products · Maximum concentration: 0.5%
Schedule 5, reference 192, source row 229 · effective-2026-01-01
ASEAN
ASEAN Cosmetic Directive annexes 2026-1, 22 June 2026India
Cosmetics Rules 2020 plus current BIS IS 4707 parts (1:2020, 2:2025, 3:2025, 4:2022)Saudi Arabia
SFDA live prohibited/restricted lists, snapshot 30 August 2026Exact Annex II–VI evidence
Annex IVentry 35
Open full regulatory recordCI 16255
Warnings: Purity criteria as set out in Commission Directive 95/45/EC (E 124)
Chemical identity and properties
CAS 12227-64-4PubChem CID 136086322
Ponceau 4R aluminum
- IUPAC name
- aluminum 7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate
- Molecular formula
- C20H11AlN2O10S3
- Molecular weight
- 562.5 g/mol
- Exact mass
- 561.9391215 Da
- Topological polar surface area
- 242.0 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 12
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
K6DSC8J075C.I. Food Red 7:1EINECS 235-438-3C.I. FOOD RED 7 ALUMINUM LAKEC.I. 16255:1RefChem:867236Aluminum, 7-hydroxy-8-(4-sulfo-1-naphthalenyl)azo-1,3-naphthalenedisulfonato(3-)-235-438-3
5 more reported names
Aluminum, (7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-1,3-naphthalenedisulfonato(3-))-Aluminum, [7-hydroxy-8-[(4-sulfo-1-naphthalenyl)azo]-1,3-naphthalenedisulfonato(3-)]-UNII-K6DSC8J07511652 Dispersed RedC.I.Food Red 7:1
Evidence from additional scientific databases
NIH PubChem PUG-View
Exact identifier match136086322
Attributed physical-property, hazard, environmental and use annotations.
- Note: This chemical does not meet GHS hazard criteria for 100% (5 of 5) of all reports. Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 5 of 5 companies. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 5 reports by companies from 1 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 5 of 5 reports by companies.; There are 0 notifications provided by 0 of 5 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
CAS 2611-82-7PubChem CID 17466
C.I. Acid Red 18, trisodium salt
- IUPAC name
- trisodium;7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate
- Molecular formula
- C20H11N2Na3O10S3
- Molecular weight
- 604.5 g/mol
- Exact mass
- 603.92689092 Da
- Topological polar surface area
- 242.0 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 12
- Covalent units
- 4
- Defined stereocentres
- 0
Also known as
RefChem:1080550Ponceau 4RNew coccineAcid red 18C.I. Acid Red 18Food Red No. 102Victoria Scarlet 3RSX Purple
16 more reported names
Brilliant Scarlet 4RCoccineColacid Ponceau 4RFood Red 7Acilan Scarlet V3RAcid Brilliant Scarlet 3RCerticol Ponceau 4RSCochineal Red AAtul Acid Scarlet 3RFood Red 102Food Red Number 102C.I. Acid Red 28Edicol Supra Ponceau 4RSNeucoccinBrilliant Ponceau 3RBrilliant Scarlet 3R
External database identifiers
- EPA DTXSID:DTXSID9021213
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Additional authoritative substance research
These source-specific lookups can add hazard, toxicology, identity and assessment context. A link is a research route, not a claim that the source contains an exact record.
Cosmetic Ingredient Review safety assessments
Expert Panel conclusions, assessed ingredient groups, use conditions, dates and report documents
Independent expert review considered by FDA; not a government approval or binding market rule
Research this identityFDA Global Substance Registration System
UNII identifiers, preferred names, substance types, codes and public substance relationships
Identity registry only; UNII availability does not imply FDA review or approval
Research this identityILO/WHO International Chemical Safety Cards
Hazards, symptoms, first aid, storage, incompatibilities and physical properties for covered chemicals
International occupational chemical-safety reference; not cosmetic-use approval
Research this identityJapan NITE-CHRIP
Chemical identity, Japanese and foreign legal lists, GHS hazards and exposure-related information
Chemical-management evidence; cosmetic status remains governed by the applicable MHLW standard and market rules
Research this identityNIOSH Pocket Guide to Chemical Hazards
REL, PEL, IDLH, properties, exposure routes, symptoms, target organs, first aid and measurement methods for covered workplace chemicals
US occupational-health guidance and limits; not a cosmetic ingredient decision
Research this identityOECD eChemPortal
Gateway to authority-owned physical-property, fate, ecotoxicity, toxicity, exposure and GHS records
Discovery gateway; each linked authority remains responsible for its data
Research this identityUS EPA CompTox CTX APIs
DTXSID identity, experimental and predicted properties, toxicity, bioactivity, exposure and environmental data
Scientific and computational evidence; predictions must remain labelled and do not determine cosmetic legality
Research this identityContinue the compliance check
1. Confirm identity
Match the supplier specification, CAS/EC identifiers and composition to this official label name. Similar wording is not proof of chemical equivalence.
2. Review restrictions
Check every exact Annex record shown above, plus CMR, nanomaterial, SCCS and later-amendment requirements that may apply.
3. Verify the formula
Evaluate concentration, product type, purity, warnings, claims and each target market before making a compliance decision.
Official source and scope
Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.
Open official Decision