(2alpha,3beta,4beta)-2,3-Dihydroxy-24-norursa-12,18-dien-28-oic acid 129058-60-2 2,3-Dihydroxy-23-norursa-12,18-dien-28-oic acid 2,3-Dihydroxy-24-norursa-12,18-dien-28-oic acid 24-Norursa-12,18-dien-28-oic acid, 2,3-dihydroxy-, (2alpha,3beta,4beta)- Goreishic acid II Goreishic acid III