2',4',5',7'-tetrabromo-3',6'-dihydroxy-1-oxospiro[2-benzofuran-3,9'-xanthene]-5-carboxylic acid

2',4',5',7'-tetrabromo-3',6'-dihydroxy-1-oxospiro[2-benzofuran-3,9'-xanthene]-5-carboxylic acid · CAS 3561-24-8