can't read?
4-Hydroxy 3-methoxy cinnamic acid, 98% is a hydroxycinnamic acid, a type of organic compound. It is an abundant phenolic phytochemical found in plant cell wall components such as arabinoxylans as covalent side chains.
H 1634 (OTTO) 4-Hydroxy 3-methoxy cinnamic acid, 98% Cas 1135-24-6 - used in place of natural vanilla extract.