# C.I. Acid Green 9, monosodium salt

URL: https://app.greenveil.ai/ingredients/ingredient_cas_4857_81_2
Categories: beauty, industrial
Functions: colorant, Dye
Identifier: 4857-81-2

> C.I. Acid Green 9, monosodium salt 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: Hydrogen [4-[(2-chlorophenyl)[4-[ethyl(3-sulphonatobenzyl)amino]phenyl]methylene]cyclohexa-2,5-dien-1-ylidene](ethyl)(3-sulphonatobenzyl)ammonium, sodium salt 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. Maximum concentration: Rinse-off products
- US: commercial use observed — EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Dye.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._