4-Chlorocinnamaldehyde

• CAT Number: R073438
• CAS Number: 49678-02-6
• PubChem Substance ID: 5924929
• Molecular Formula: C9H7ClO
• Molecular Weight: 166.60
• Purity: ≥95%
• IUPAC Name: (E)-3-(4-chlorophenyl)prop-2-enal
• InChI: InChI=1S/C9H7ClO/c10-9-5-3-8(4-6-9)2-1-7-11/h1-7H/b2-1+
• InChIKey: HONRSHHPFBMLBT-OWOJBTEDSA-N
• SMILES: C1=CC(=CC=C1/C=C/C=O)Cl

4-Chlorocinnamaldehyde（Cat No.:R073438）is an aromatic α,β-unsaturated aldehyde featuring a chlorine atom at the para (4) position of the phenyl ring. Structurally, it consists of a benzene ring substituted with a chlorine atom, a conjugated double bond, and a terminal aldehyde group. This compound is used as a versatile intermediate in organic synthesis, particularly in the preparation of pharmaceuticals, agrochemicals, and fragrances. Its conjugated system facilitates participation in electrophilic and nucleophilic addition reactions, as well as cycloaddition processes. The para-chloro substitution enhances its reactivity and influences its electronic and steric properties.