# NAPHTHOL BLUE BLACK

URL: https://app.greenveil.ai/ingredients/ingredient_cas_1064_48_8
Categories: beauty, cleaning, industrial, pharma
Functions: colorant, Dye
Identifier: 1064-48-8

> NAPHTHOL BLUE BLACK is used as colorant / dye. Greenveil chemical-concern score: 70/100 — High concern based on regulatory listings.. Assessed from 7 sources.

## Safety assessment

- Chemical concern score: 70/100 — High concern based on regulatory listings.
- Confidence: 4
- Rationale: 4-Amino-5-hydroxy-3-(4-nitrophenylazo)-6- (phenylazo)-2,7- naphthalenedisulfonic acid, disodium salt is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.

## Regulatory status

- EU: restricted — Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: Hair dye substance in non-oxidative hair dye products Maximum concentration: 0,5 %
- EU: allowed_listed — Annex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products. Maximum concentration: Rinse-off products
- US: commercial use observed — EPA CPDat observed this chemical in 9 composition records across product categories including Construction and building materials, Laboratory supplies, Cleaning and safety. EPA CPDat classifies this chemical for functional uses including Dye.
- US: inactive ingredient database — Route: ORAL; Dosage form: TABLET; Potency: 0.83 mg
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._