Synonyms: 5-FAM-NHS DIACETATE;5-FAM DIACETATE;5-CFDA;5-CARBOXYFLUORESCEIN DIACETATE-N-HYDROXYSUCCINIMIDE ESTER;5-CARBOXY-FLUORESCEIN DIACETATE N-SUCCINIMIDYL ESTER;5-CARBOXYFLUORESCEIN-NHS DIACETATE;5-CARBOXY-DI-O-ACETYLFLUORESCEIN;5-CARBOXY-DI-O-ACETYLFLUORESCEIN N-SUCCINIMIDYL ESTER;6-{[(2,5-dioxopyrrolidin-1-yl)oxy]carbonyl}-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-diyl diacetate;5-{[(2,5-dioxopyrrolidin-1-yl)oxy]carbonyl}-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-diyl diacetate - 6-{[(2,5-dioxopyrrolidin-1-yl)oxy]carbonyl}-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-diyl diacetate (1:1)