Cinnamaldehyde, commonly called cinnamaldehyde, naturally exists in essential oils such as Sri Lankan cinnamon oil, cinnamon oil, agastache oil, hyacinthus orientalis oil and rose oil. Cinnamaldehyde has two isomers, cis and trans. The commercial cinnamaldehyde, whether natural or synthetic, is trans.

Other introductions

English name: cinnamaldehyde, cinnamaldehyde, cinnamaldehyde, β-phenylacrolein, 3- phenyl -2- acrolein. 　

Molecular formula: C9H8O. Structural formula: C6H5CHCHCHO. Molecular weight: 132. 16

The molecular formula of citral is C 10H 16O, which is one of the most important representatives of open-chain monoterpenes. It is found in the oil of Fengmao and Litsea cubeba. Natural citral is a mixture of two geometric isomers.