Examples from the Web for cinnamic
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.
Wolff has converted this alcohol by oxidizing agents into cinnamic acid.
It contains about 20% of cinnamic acid in addition to 18 or even more of benzoic.
It is perfectly soluble in alcohol and in ether, and gives out its acid (benzoic or cinnamic) to water.