# SOLVENT BLACK 3

URL: https://app.greenveil.ai/ingredients/ingredient_cas_4197_25_5
Categories: beauty, industrial
Functions: Dye, Pigment
Identifier: 4197-25-5

> SOLVENT BLACK 3 is used as dye / pigment. Greenveil chemical-concern score: 100/100 — Critical concern based on regulatory listings.. Assessed from 5 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern based on regulatory listings.
- Confidence: 4
- Rationale: 2,3-Dihydro-2,2-dimethyl-6-[(4-(phenylazo)-1-naphthelenyl)azo]-1H-pyrimidine (Solvent Black 3) 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.

## Regulatory status

- EU: banned — Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.
- US: commercial use observed — EPA CPDat observed this chemical in 5 composition records across product categories including Laboratory supplies, Raw materials, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Dye, Pigment.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._