Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-6-carboxylicacid, 4',5'-dichloro-3',6'-dihydroxy-2',7'-dimethoxy-3-oxo-,2,5-dioxo-1-pyrrolidinyl ester

6-carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein ; 6-carboxy-4',5'-dichloro-2',7"-*dimethoxyfluoroscei ; 6-joe, se [6-carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein, succinimidyl ester] ; 2,5-dioxopyrrolidin-1-yl 4',5'-dichloro-3',6'-dihydroxy-2',7'-dimethoxy-3-oxo-3h-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylate ; 6-carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein, succinimidyl ester ; 6-joe, se ; 6-carboxy-4',5'-dichloro-2',7'-dimethoxyfluorescein n-hydroxysuccinimide ester