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C.I. Acid Red 18, trisodium salt

CAS 2611-82-7 · 70/100 · High conf.

Also registered as 7 other CAS numbers

11138-24-2 · 12000-58-7 · 39470-82-1 · 39471-00-6 · 51811-48-4 · 161628-34-8 · 247151-36-6

Colorant · Dye

Concern score

70/100High concern based on regulatory listings.
High confidence

Why it's flagged

Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate and aluminium lake (Cl 16255) (see note 17). is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — restricted

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

Restrictions first, then routine listings from published regulatory sources.

  • EU Annex III — restricted
  • EU Annex IV — permitted colorant
  • EU permitted colorant
  • EU restricted in cosmetics

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Industrial

  • EUEC

    Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: Hair dye substance in non-oxidative hair dye products Maximum concentration: 0.5%

    restricted
    View source →
  • EUECallowed_listedAnnex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products. Conditions of use and warnings: Purity criteria as set out in Commission Directive 95/45/EC (E 124)
    • Annex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products. Conditions of use and warnings: Purity criteria as set out in Commission Directive 95/45/EC (E 124)Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 10 composition records across product categories including Specialty occupational products, Personal care, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Dye.
    • EPA CPDat observed this chemical in 10 composition records across product categories including Specialty occupational products, Personal care, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Dye.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

No graded research studies for C.I. Acid Red 18, trisodium salt yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2020-08-14

    Open →

  • EPA Chemical and Products Database

    exposure · updated July 2013

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →
Reference links (1)
Openfda substance

codexalimentarius.net

Read →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed C.I. Acid Red 18, trisodium salt in a product composition. These are source records, not Greenveil catalog products.

Source records

10

Named organisations

6

Specialty occupational productsPersonal careCleaning products and household care

Typical roles

ColorantDye
See products using C.I. Acid Red 18, trisodium salt →

Catalog

Found in these products

See all 28 →Find products without it →