Calcein, orange powder research grade

Supplier: MP Biomedicals

Synonyms: Oftasceina, Fluorescein Complexon, Oftasceinum, 2,7-Bis[bis(carboxymethyl)aminomethyl]fluorescein, Oftasceine, 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, Bis[N,N-bis(carboxymethyl)aminomethyl]fluorescein, NSC 298193

0219508701 0219508705 0219508710
ICNA0219508701EA 84.4 SGD
ICNA0219508701 ICNA0219508705 ICNA0219508710
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.

Formula: C₃₀H₂₆N₂O₁₃
MW: 622,53 g/mol
Boiling Pt: 200 °C (lit.)
Storage Temperature: Ambient
MDL Number: MFCD00005049
CAS Number: 1461-15-0

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