Fragrance
BROMOCINNAMAL
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A brominated cinnamaldehyde used in trace fragrance applications. The halogen plus aldehyde combination is reactive — not a gentle fragrance building block.
Bromocinnamal (alpha-bromocinnamaldehyde, CAS 5443-49-2) is a halogenated aromatic aldehyde historically used as a minor fragrance component and as a reactive intermediate in chemistry. Its parent compound, cinnamaldehyde (cinnamal), is on the EU Annex III list of 26 declarable fragrance allergens and a well-known skin sensitizer. The alpha-bromo derivative is a reactive Michael acceptor that can bind skin proteins, typically raising sensitization potential above the parent aldehyde. Halogenated aldehydes also carry aquatic-toxicity flags. There is no specific CIR or SCCS safety opinion supporting broad cosmetic use. Legacy previous score of 85 in this database appears to be overly generous; the chemistry argues for caution.
Skin benefits
- Fragrance ingredient with spicy-balsamic character
- Trace use for odor profiling
Known concerns
- Alpha-brominated cinnamaldehyde — reactive electrophile
- Cinnamal derivatives are potent skin sensitizers
- Halogenated aldehyde raises aquatic-toxicity and bioaccumulation questions
- Limited modern safety data
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related fragrances
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.