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Basic violet 1

CAS 1335-69-9 · 100/100 · High conf.

Also registered as 6 other CAS numbers

4353-72-4 · 8048-69-9 · 12227-76-8 · 12634-45-6 · 134191-03-0 · 8004-87-3

Concern score

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

Basic violet 1 in plain language

What it is

Also known as C.I. Basic Violet 1 · Colouring agent CI 42535 (Basic Violet 1) · C.I. 42535 · CI 42535 · Methyl violet · Aizen Methyl Violet BB

Show all 15 names

Aizen Methyl Violet Pure Special · Basic Violet 5BN · Basic Violet K · Basonyl Violet 600 · C Ext. Violet 5 · Lowacryl violet 1 · Methyl violet (CI 42535) · coloring material · methy violet

What it does

Used in cosmetics as a hair dye.

  • Hair dyeing
  • Colourant
Is it a concern?
Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

Why it's flagged

Colouring agent CI 42535 (Basic Violet 1) 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
  • Industrial
  • EUEC

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

    banned
    View source →
  • EUCosIngActive2 entries
  • USEPAcommercial use observedEPA CPDat observed this chemical in 29 composition records across product categories including Laboratory supplies, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Dye.
    • EPA CPDat observed this chemical in 29 composition records across product categories including 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 mixture.
    • openFDA substance registry classifies this ingredient as mixture.Source →

Expert safety opinions

No expert opinion on file for Basic violet 1. 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 Basic violet 1 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

  • 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 GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →

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.

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 Basic violet 1 in a product composition. These are source records, not Greenveil catalog products.

Source records

29

Named organisations

3

Laboratory suppliesSpecialty occupational products

Typical roles

Hair dyeingColourant
See products using Basic violet 1 →

Catalog

Found in these products

Cosmetic and personal-care products that list Basic violet 1 are shown first. Their ingredient lists include Basic violet 1; each product's own rating depends on its whole formula, so it is shown on the product page, not here.