2α,3β,13,23-Tetrahydroxyurs-11-en-28-oic acid γ-lactone is a chemical compound registered under CAS number 36687-59-9. It is also known as 2α,3β,23-Trihydroxy-13,28-epoxyurs-11-ene-28-one; Dryobalanolide. ReagentForLab supplies 2α,3β,13,23-Tetrahydroxyurs-11-en-28-oic acid γ-lactone for laboratory research and bulk production; product code 443409. Send an inquiry for purity, packaging, price and lead time.