4431-00-9 63451-31-0 Benzoic acid, 3,3'-((3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methylene)bis(6-hydroxy-, calcium salt (2:3) Benzoic acid, 5,5'-((3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methylene)bis(2-hydroxy-, calcium salt (2:3) Benzoic acid, 5-((3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methyl)-2-hydroxy-, calcium salt Calcium 5,5'-((3-carboxy-4-oxo-2,5-cyclohexadien-1-ylidene)methylene)bissalicylate (2:3) EINECS 264-193-5