Synonyms:
Fluorescein Complexon
, 2,2',2'',2'''-(((3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-2',7'-diyl)bis(methylene))bis(azanetriyl))tetraacetic acid
, Fluorexon
, NSC 298193
, Bis[N,N-bis(carboxymethyl)aminomethyl]fluorescein
, 2,7-Bis[bis(carboxymethyl)aminomethyl]fluorescein
0219508705
0219508710
0219508701
IC19508705EA
227.92
USD
InStock
IC19508705
IC19508701
IC19508710
Calcein, orange powder research grade
Calcein
Calcein is used as an Indicator for the determination of calcium by titration with EDTA. Suitable for fluorometric determination of calcium.
Calcein does not fluoresce in strong alkaline solution, but an intense fluorescence appears in the presence of alkaline earths, especially calcium. The yellow green fluorescence disappears instantly with an addition of EDTA. Also in acidic solution, the yellow green fluorescence of Calcein disappears with an addition of copper, zinc and mercury.
Practically insoluble in water; easily soluble in alkaline solutions to give an orange red solution.