Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,2',7'-dichloro-3',6'-dihydroxy-, sodium salt (1:2)
Fluorescein,2',7'-dichloro-, sodium deriv., sodium salt (7CI);Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,2',7'-dichloro-3',6'-dihydroxy-, disodium salt (9CI)