(3beta,28(Z))-3-Hydroxy-28-((3-(4-hydroxyphenyl)-1-oxo-2-propenyl)oxy)urs-12-en-27-oic acid 165171-15-3 3-Hydroxy-28-((3-(4-hydroxyphenyl)-1-oxo-2-propenyl)oxy)urs-12-en-27-oic acid (3beta,28(Z))- 3-Hydroxy-28-p-coumaroyloxyurs-12-en-27-oic acid Karenin Urs-12-en-27-oic acid, 3-hydroxy-28-((3-(4-hydroxyphenyl)-1-oxo-2-propenyl)oxy)-, (3beta,28(Z))-