.beta.-(p-Hydroxyphenyl)propionic acid 3-(4-Hydroxyphenyl)propanoic acid 3-(4-Hydroxyphenyl)propionic acid 3-(p-Hydroxyphenyl)propionic acid 4-Hydroxyphenylpropionic acid 501-97-3 Benzenepropanoic acid, 4-hydroxy- Hydro-p-coumaric acid Hydrocinnamic acid, p-hydroxy- NSC65596 PHLORETIC ACID p-Hydroxyhydrocinnamic acid p-Hydroxyphenylpropionic acid