# 2,2'-[(1~3~,3~3~-Dimethyl-2~3~,2~4~,2~5~,2~6~-tetrahydro-2~2~H-[1~1~,2~1~:2~1~,3~1~-terphenyl]-1~4~,3~4~-diyl)bis(diazene-2,1-diyl)]bis(4-cyclohexylphenol)

URL: https://app.greenveil.ai/ingredients/ingredient_cas_6706_82_7
Categories: beauty, industrial
Functions: colorant, Dye
Identifier: 6706-82-7

> 2,2'-[(1~3~,3~3~-Dimethyl-2~3~,2~4~,2~5~,2~6~-tetrahydro-2~2~H-[1~1~,2~1~:2~1~,3~1~-terphenyl]-1~4~,3~4~-diyl)bis(diazene-2,1-diyl)]bis(4-cyclohexylphenol) is used as colorant / dye. Greenveil chemical-concern score: 100/100 — Critical concern based on regulatory listings.. Assessed from 4 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern based on regulatory listings.
- Confidence: 4
- Rationale: 2,2'-[Cyclohexylidenebis[(2-methyl-4,1-phenylene)azo]]bis[4-cyclohexylphenol] (Solvent Yellow 29; CI 21230) 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.
- EU: allowed_listed — Annex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products. Maximum concentration: Not to be used in products applied on mucous membranes
- 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.

_Assessed by Greenveil._