Calcein fluorescent indicator
25 g
Catalog # CAYM16221-25
IrritantSupplier: Cayman Chemical
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Calcein is a xanthene that is commonly used for the fluorometric determination of calcium in solution. As this form of calcein is not membrane permeable, it can be used in assays that evaluate membrane integrity. Calcein can also be used as a fluorescent indicator for fluoride, iron, and mercury. Excitation and emission maxima for calcein are 494 and 517 nm, respectively.
- Emission 517 nm
- Excitation 494 nm
- Formulation A crystalline solid
- λmax 226, 278 nm
This form of calcein is not membrane permeable and can be used in assays that evaluate membrane integrity.
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
- CAS Number:1461-15-0
- Formula:C₃₀H₂₆N₂O₁₃
- MDL Number:MFCD00005049
- Molecular Weight:622.53 g/mol
- Storage Temperature:Freezer
- EINECS:215-957-1
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- Pk:25 g
- Cat. No.:CAYM16221-25