Banaba Exteact Corosolic Acid Factory Direct Price 100% natural ,Safe COC,ISO,KOSHER,FDA Stable&Timely Supply Corosolic Acid Specification : 1%,5%,10%,20% Corosolic Acid Cas No:4547-24-4StructureCorosolic acid is also known as 2 alpha-hydroxyursolic acid. Its structure is a pentacyclic titerpene, which means it contains five rings as can be seen in the illustration.Our COA & Graph: Product ...