(+-)-((3,4-Dihydro-5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-4-oxo-2H-1-benzopyran-7-yl)oxy)acetic acid monosodium salt 70412-88-3 Acetic acid, ((3,4-dihydro-5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-4-oxo-2H-1-benzopyran-7-yl)oxy)-, monosodium salt, (+-)-