# 1,3-Butadiene

URL: https://app.greenveil.ai/ingredients/ingredient_cas_106_99_0
Categories: beauty, cleaning, industrial
Functions: Monomers, No specific technical function, olefins/unsaturated

> 1,3-Butadiene is used as monomers / no specific technical function. 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: Buta-1,3-diene, see also entries 464-611 is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

_Assessed by Greenveil._