# Azobenzene

URL: https://app.greenveil.ai/ingredients/ingredient_cas_103_33_3
Categories: beauty, industrial
Identifier: 103-33-3

> Azobenzene. Greenveil chemical-concern score: 100/100 — Critical concern driven by cmr.. Assessed from 6 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern driven by cmr.
- Confidence: 4
- Rationale: Azobenzene 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. CMR: Carcinogenic Cat. 1B(),Mutagenic Cat. 2()
- US: commercial use observed — EPA CPDat observed this chemical in 15 composition records across product categories including Laboratory supplies, Raw materials.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._