4-Propylbenzaldehyde

4-Propylbenzaldehyde (CAS 28785-06-0, EC 249-221-6) is an aromatic aldehyde with the molecular formula C10H12O, also referred to as p-propylbenzaldehyde or p-propyl-benzaldehyd in European trade documentation. It carries no assigned E-code and is classified under HS code 2912290090 for customs purposes.

In pharmaceutical synthesis, 4-propylbenzaldehyde serves as a building block in the preparation of active pharmaceutical ingredients, where its aldehyde group participates in condensation and reductive amination reactions to construct more complex molecular frameworks. It is also employed in flavour compound synthesis, where the propyl-substituted benzaldehyde structure contributes specific aromatic character to target molecules.

This material is supplied as an oil-phase liquid and falls under REACH regulation, requiring standard SDS documentation for EU trade. Procurement teams should confirm purity grade specifications directly with the supplier, as pharmaceutical intermediate applications typically require documented quality standards aligned with GMP expectations.