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14728 Fluka

Calcein

for fluorescence, ≥93% (HPCE)

Synonym: Bis[N,N−bis(carboxymethyl)aminomethyl]fluorescein, Fluorescein-bis(methyliminodiacetic acid), Fluorexon

  • CAS Number 154071-48-4

  • Empirical Formula (Hill Notation) C30H26N2O13

  • Molecular Weight 622.53

  •  Beilstein Registry Number 8181068

  •  EC Number 215-957-1

  • Popular Documents:  FTIR (PDF)  

Properties

grade   for fluorescence
assay   ≥93% (HPCE)
solubility   H2O: soluble
fluorescence   λex 470 nm; λem 509 nm in PBS

Description

Application

Indicator for the fluorimetric determination of calcium (in presence of Mg) by complexometric titration1,2; Determination of Ca in biological systems3,4.

Physical properties

Highly purified and consists of one isomer (the 4′,5′-isomer).

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