2-Cyclopentene-1-tridecanoic acid, methyl ester 2-Cyclopentene-1-tridecanoic acid, methyl ester, (S)- 2-Cyclopentene-1-tridecanoic acid, methyl ester, D- 24828-59-9 Chaulmoogric acid, methyl ester, D- METHYL CHAULMOOGRATE NSC313955