Robuta

https://phytochem.nal.usda.gov/chemical-syringaresinol Chemical (+)-SYRINGARESINOL | Dr. Duke's Phytochemical and Ethnobotanical Databases chemical dr duke ethnobotanical databases https://phytochem.nal.usda.gov/chemical-syringaresinol-mono-o-glucoside Chemical SYRINGARESINOL-MONO-O-GLUCOSIDE | Dr. Duke's Phytochemical and Ethnobotanical Databases