# Vat Blue 4

URL: https://app.greenveil.ai/ingredients/ingredient_cas_81_77_6
Categories: beauty, industrial
Functions: colorant, Dye, Pigment
Identifier: 81-77-6

> Vat Blue 4 is used as colorant / dye. Greenveil chemical-concern score: 25/100 — Minor concern based on regulatory listings.. Assessed from 6 sources.

## Safety assessment

- Chemical concern score: 25/100 — Minor concern based on regulatory listings.
- Confidence: 4
- Rationale: 6,15-Dihydroanthrazine-5,9,14,18-tetrone is listed in Annex IV of the EU Cosmetics Regulation (EC) 1223/2009 (colorants allowed in cosmetic products).

## Regulatory status

- EU: allowed_listed — Annex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products.
- US: commercial use observed — EPA CPDat observed this chemical in 11 composition records across product categories including Construction and building 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._