1,3-Dihydro-3,5-dihydroxy-7-methoxy-6-methyl-1-oxo-4-isobenzofurancarboxaldehyde 4-Isobenzofurancarboxaldehyde, 1,3-dihydro-3,5-dihydroxy-7-methoxy-6-methyl-1-oxo- 477-99-6 Cyclopaldic acid