# C.I. Solvent Black 5

URL: https://app.greenveil.ai/ingredients/ingredient_cas_11099_03_9
Categories: beauty, industrial
Functions: Dye
Identifier: 11099-03-9

> C.I. Solvent Black 5 is used as dye. Greenveil chemical-concern score: 100/100 — Critical concern based on regulatory listings.. Assessed from 3 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern based on regulatory listings.
- Confidence: 4
- Rationale: Nigrosine spirit soluble (Solvent Black 5) 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 1 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Dye.

_Assessed by Greenveil._