5-AMino-3',6'-bis(diMethylaMino)spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one

5-AMinotetraMethylrhodaMine [XanthyliuM, 9-(4-aMino-2-carboxyphenyl)-3,6-bis(diMethylaMino)-, inner salt]