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Methylene blue anhydrous

CAS 61-73-4 · 100/100 · High conf.

Also registered as 13 other CAS numbers

150645-86-6 · 152071-32-4 · 1341-90-8 · 6476-03-5 · 12262-49-6 · 97130-83-1 · 105504-42-5 · 121067-62-7 · 167498-52-4 · 923927-02-0 · 1001913-24-1 · 1001914-35-7 · 1219638-11-5

Dye

Methylene blue anhydrous chemical structure

Concern score

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

Why it's flagged

Phenothiazin-5-ium, 3,7-bis(dimethylamino)- and its salts, when used as a substance in hair dye products 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

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Pharma
  • Food
  • Industrial
  • EUEC

    Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.

    banned
    View source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 48 composition records across product categories including Raw materials, Laboratory supplies, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Dye.
    • EPA CPDat observed this chemical in 48 composition records across product categories including Raw materials, Laboratory supplies, Specialty occupational products. 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 Methylene blue anhydrous yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2010-10-15

    Open →
  • EPA Chemical and Products Database

    exposure · updated January 7, 2008

    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 →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (2)

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 Methylene blue anhydrous in a product composition. These are source records, not Greenveil catalog products.

Source records

48

Named organisations

6

Raw materialsLaboratory suppliesSpecialty occupational productsPersonal careFood and drug

Typical roles

Dye
See products using Methylene blue anhydrous

Catalog

Found in these products