17230-75-0

Papuanic acid (2R,βR)-3,4-Dihydro-5-hydroxy-7-methoxy-2,3β-dimethyl-8-(3-methyl-2-butenyl)-4-oxo-β-pentyl-2H-1-benzopyran-6-propionic acid 2H-1-Benzopyran-6-propanoic acid, 3,4-dihydro-5-hydroxy-7-methoxy-2,3-dimethyl-8-(3-methyl-2-buten-1-yl)-4-oxo-β-pentyl-, (βR,2R,3R)-