Dactylifric acid is a caffeic acid glycoside (3-O-caffeoylshikimic acid). It and its isomers are enzymic browning substrates found in dates (Phoenix dactylifera fruits). Dactylifric acid is a caffeic acid glycoside (3-O-caffeoylshikimic acid). It and its isomers are enzymic browning substrates found in dates (Phoenix dactylifera fruits).