cinnamic

[ si-nam-ik, sin-uh-mik ]

/ sɪˈnæm ɪk, ˈsɪn ə mɪk /

of or obtained from cinnamon.

Origin of cinnamic

First recorded in 1880–85; cinnam(on) + -ic

Other constituents of the oil are cinnamyl acetate and cinnamic acid.

The Handbook of Soap Manufacture |W. H. Simmons
By the addition of diluted sulphuric acid, the aldehyde of cinnamic acid is afterwards procured pure.

The Art of Perfumery |G. W. Septimus Piesse
Wolff has converted this alcohol by oxidizing agents into cinnamic acid.

The Art of Perfumery |G. W. Septimus Piesse
It contains about 20% of cinnamic acid in addition to 18 or even more of benzoic.

Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 6 |Various