# Acid Blue 3

URL: https://app.greenveil.ai/ingredients/ingredient_cas_3536_49_0
Categories: beauty, cleaning
Functions: colorant, Dye
Identifier: 3536-49-0

> Acid Blue 3 is used as colorant / dye. Greenveil chemical-concern score: 100/100 — Critical concern based on regulatory listings.. Assessed from 7 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern based on regulatory listings.
- Confidence: 4
- Rationale: Ethanaminium, N-(4-((4-diethylamino)phenyl)(5-hydroxy-2,4-disulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, hydroxide, inner salt, calcium salt (2:1) (Acid Blue 3; CI 42051) 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.

## Regulatory status

- EU: banned — Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.
- EU: allowed_listed — 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 131)
- US: commercial use observed — EPA CPDat observed this chemical in 19 composition records across product categories including Cleaning products and household care, Personal care, Construction and building materials. EPA CPDat classifies this chemical for functional uses including Dye.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._