- beauty
- cleaning
- industrial
- pharma
Metanil yellow
CAS 53988-78-6 · 100/100 · High conf.
Also registered as 4 other CAS numbers
68417-63-0 · 84842-92-2 · 1173501-41-1 · 587-98-4
Concern score
100/100Critical concern based on regulatory listings.
High confidence
Metanil yellow in plain language
On cosmetic ingredient lists it appears as “Acid yellow 36”.
Also known as Acid yellow 36 · C.I. Acid Yellow 36, monosodium salt · Colouring agent CI 13065 · KI406 · C.I. 13065 · C.I. acid yellow 36
Show all 14 names
Ext. D&C yellow no. 1 (delisted) · 11363 Yellow · Benzenesulfonic acid, m-(p-anilinophenylazo)-, sodium salt · C.I. Acid Yellow 36 monosodium salt · Monoazo · Sodium 3-(p-anilinophenylazo)benzenesulphonate · Sodium 4′-anilinoazobenzene-3-sulfonate · solvent yellow 6 (ci acid yellow 36)
Used in cosmetics as a hair dye.
- Hair dyeing
- Colourant
- Critical concern: no hazard classifications on record. It is banned in EU cosmetics.
Why it's flagged
Colouring agent CI 13065 is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.
RestrictedEU EC — banned
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 II — prohibited
- EU prohibited in cosmetics
- Inactive ingredient in US drugs
- Found in consumer products
- Cleaning
- Industrial
- View source →banned
EUEC
Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.
USEPAcommercial use observedEPA CPDat observed this chemical in 30 composition records across product categories including Laboratory supplies, Cleaning products and household care, Vehicle. EPA CPDat classifies this chemical for functional uses including Dye, Pigment.
- EPA CPDat observed this chemical in 30 composition records across product categories including Laboratory supplies, Cleaning products and household care, Vehicle. EPA CPDat classifies this chemical for functional uses including Dye, Pigment.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Expert safety opinions
No expert opinion on file for Metanil yellow. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.
SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.
Evidence & sources
No graded research studies for Metanil yellow yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
CosIng
regulatory · updated 2026-09-23
- Open →
EU CosIng Cosmetics Regulation Annexes
regulatory · updated 2010-10-20
- Open →
EPA Chemical and Products Database
exposure · updated January 7, 2008
- Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
- Open →
FDA Inactive Ingredient Database
regulatory · updated 2026-01-09
- Open →
FDA GSRS UNII
registry · updated 2026-02-26
- Open →
openFDA Substance
registry · updated 2026-05-24
Reference links (1)
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Fragrance avoidance
No fragrance-linked caution surfaced in the current profile.
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 Metanil yellow in a product composition. These are source records, not Greenveil catalog products.
Source records
30
Named organisations
6
Laboratory suppliesCleaning products and household careVehicleCleaning and safety
Typical roles
Hair dyeingColourant