# Tetrahydrofuran

URL: https://app.greenveil.ai/ingredients/ingredient_cas_109_99_9
Categories: beauty, cleaning, industrial
Functions: elastomeric, raw material, solvant, Solvent
Identifier: 109-99-9

> Tetrahydrofuran is used as elastomeric / raw material. Greenveil chemical-concern score: 100/100 — Critical concern driven by cmr.. Assessed from 6 sources.

## Safety assessment

- Chemical concern score: 100/100 — Critical concern driven by cmr.
- Confidence: 4
- Rationale: Tetrahydrofuran 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. CMR: Carcinogenic Cat. 2()
- US: commercial use observed — EPA CPDat observed this chemical in 699 composition records across product categories including Home maintenance, Laboratory supplies, Personal care. EPA CPDat classifies this chemical for functional uses including Solvent, raw material, elastomeric.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._