9-(2-carboxyphenyl)-2,7-dichloro-6-hydroxy-3-oxo-3,9a-dihydroxanthenium methanesulfonate is a chemical compound registered under CAS number 63549-13-3, with the molecular formula C21H14Cl2O8S and a molecular weight of about 497.3 g/mol. It is also known as xanthylium, 9-(2-carboxyphenyl)-2,7-dichloro-3,9a-dihydro-6-hydroxy-3-oxo- methanesulfonate (1:1). DeWeiChem supplies 9-(2-carboxyphenyl)-2,7-dichloro-6-hydroxy-3-oxo-3,9a-dihydroxanthenium methanesulfonate for laboratory research and bulk production; product code 2477764. Send an inquiry for purity, packaging, price and lead time.