# Toluene 2,4-diisocyanate

URL: https://app.greenveil.ai/ingredients/ingredient_cas_584_84_9
Categories: beauty, industrial
Functions: crosslinking / coupling / curing agents > diisocyanates, Processing aids not otherwise specified, Solvent
Identifier: 584-84-9

> Toluene 2,4-diisocyanate is used as crosslinking / coupling / curing agents > diisocyanates / processing aids not otherwise specified. 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: 4-Methyl-m-phenylene diisocyanate (Toluene 2,4-diisocyanate) 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 379 composition records across product categories including Vehicle, Raw materials, Industrial products. EPA CPDat classifies this chemical for functional uses including Solvent, Processing aids not otherwise specified, crosslinking / coupling / curing agents > diisocyanates.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._