. "The chemical reactions and pathways resulting in the formation of cinnamic acid, 3-phenyl-2-propenoic acid." . . . "cinnamic acid biosynthetic process" . "cinnamic acid anabolism" . "cinnamic acid biosynthesis" . "cinnamic acid formation" . "cinnamic acid synthesis" . "cinnamylic acid biosynthesis" . "cinnamylic acid biosynthetic process" . "phenylacrylic acid biosynthesis" . "phenylacrylic acid biosynthetic process" . "phenylpropenoic acid biosynthesis" . "phenylpropenoic acid biosynthetic process" . . . . . . .