# 2,4,7,9-Tetramethyl-5-decyne-4,7-diol

URL: https://app.greenveil.ai/ingredients/ingredient_source_ref_annex_ref_ii_16
Categories: beauty, cleaning, industrial
Functions: Cleaning agent, Defoamer, No specific technical function, Surfactant (surface active agent), Wetting agent (non-aqueous)
Identifier: DTXSID7027041

> 2,4,7,9-Tetramethyl-5-decyne-4,7-diol is used as cleaning agent / defoamer. Greenveil chemical-concern score: 100/100 — Critical concern based on regulatory listings.. Assessed from 6 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern based on regulatory listings.
- Confidence: 4
- Rationale: Alkyne alcohols, their esters, ethers and salts 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 51 composition records across product categories including Raw materials, Home maintenance, Industrial products. EPA CPDat classifies this chemical for functional uses including Surfactant (surface active agent), Cleaning agent, No specific technical function.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._