(3,4-Dihydro-5-hydroxy-2,7-dimethyl-8-(2-methyl-2-butenyl)-2-(4-methyl-1,3-pentadienyl)-2H-1-benzopyran-6-carboxylic acid 2H-1-benzopyran-6-carboxylic acid, 3,4-dihydro-5-hydroxy-2,7-dimethyl-8-(3-methyl-2-butenyl)-2-[(1E)-4-methyl-1,3-pentadienyl]- 5-Hydroxy-2,7-dimethyl-8-(3-methyl-but-2-enyl)-2-(4-methyl-penta-1,3-dienyl)-chroman-6-carboxylic acid 5-hydroxy-2,7-dimethyl-8-(3-methylbut-2-en-1-yl)-2-[(1E)-4-methylpenta-1,3-dien-1-yl]chromane-6-carboxylic acid InChI=1/C23H30O4/c1-14(2)8-7-12-23(6)13-11-18-20(24)19(22(25)26)16(5)17(21(18)27-23)10-9-15(3)4/h7-9,12,24H,10-11,13H2,1-6H3,(H,25,26)/b12-7