Robuta

https://phytochem.nal.usda.gov/chemical-vanillic-aldehyde Chemical VANILLIC-ALDEHYDE | Dr. Duke's Phytochemical and Ethnobotanical Databases chemical aldehyde dr duke ethnobotanical https://research-portal.uu.nl/en/publications/vanillic-acid-and-methoxyhydroquinone-production-from-guaiacyl-un/ Vanillic acid and methoxyhydroquinone production from guaiacyl units and related aromatic compounds... acid production