Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, C7-9-branched alkyl esters (CAS 125643-61-0) — Citrus N/A Note Fragrance Ingredient
Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, C7-9-branched alkyl esters
CAS 125643-61-0
What Is Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, C7-9-branched alkyl esters?
This synthetic compound is used as a stabilizer and antioxidant in various industrial applications, including plastics and rubber. Consumers may encounter it indirectly in durable goods rather than personal care products. Its primary function is to prevent degradation of materials rather than contribute fragrance, though it may have subtle odor characteristics at high concentrations.
Safety Profile
PROFESSIONAL USEWhat Does Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, C7-9-branched alkyl esters Smell Like?
This material is not characterized as a fragrance ingredient and lacks significant odor properties at typical use levels. At elevated concentrations, it may present faint phenolic or waxy notes due to its hindered phenol structure, but these are not considered desirable in perfumery. The molecule’s primary function is chemical stabilization rather than olfactive contribution.
Chemistry, Properties & Perfumer Guide
The Chemistry
This compound belongs to the class of hindered phenol antioxidants, featuring tert-butyl groups at the 3 and 5 positions of the aromatic ring. The esterification with C7-9 branched alkyl chains enhances its compatibility with polymeric matrices. Industrial synthesis typically involves Friedel-Crafts alkylation of phenol followed by esterification. The sterically hindered structure prevents hydrogen abstraction that leads to oxidative degradation in substrates.
Physical & Chemical Properties
| Primary Use | Polymer stabilizer |
|---|---|
| Application | Industrial materials |
Perfumer Guide
| Application | Typical % | Range | Notes |
|---|---|---|---|
| Industrial | 0.1-1% | Up to 2% | Polymer stabilization |
Classic Accords
Tip: Not recommended for fragrance applications.
Alternatives & Comparisons
Safety, Regulatory & Sustainability
⚠ Regulatory Disclaimer
General reference only. Consult current IFRA Standards Library before formulating.
IFRA Status
Not evaluated by IFRA – industrial use only.
RIFM Assessment
No RIFM evaluation – not a fragrance material.
Sustainability
As an industrial antioxidant, this material is produced synthetically from petrochemical feedstocks. Its environmental impact relates primarily to manufacturing processes and end-of-life disposal in polymer applications. No natural alternatives exist for its specific technical function in material stabilization.
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