# Styrene

URL: https://app.greenveil.ai/ingredients/ingredient_cas_100_42_5
Categories: beauty, cleaning, industrial
Functions: Binder, Flavouring and nutrient, Fragrance, Monomers, Viscosity modifier, acrylics & acrylic copolymers, edge banding component, monomer - crosslinker for binder, polymerization initiators / inhibitors / catalysts>inhibitors, provides fusion of beads together, reagent, styrenics
Identifier: 100-42-5

> Styrene is used as binder / flavouring and nutrient. 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: Styrene 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: Reprotoxic Cat. 2()
- US: commercial use observed — EPA CPDat observed this chemical in 1544 composition records across product categories including Furniture and furnishings, Construction and building materials, Vehicle. EPA CPDat classifies this chemical for functional uses including Fragrance, Viscosity modifier, Flavouring and nutrient.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._