DCA-Mln
DCA-Mln is a Fluorescent probe for ferric iron (Fe³⁺) detection. The probe works via an internal charge transfer (ICT) process from its diethylamino group to its dicyano group, which produces bright pink fluorescence in its unbound state; when Fe³⁺ is present, two molecules of DCA-Mln chelate with one Fe³⁺ ion, with one cyano group of each DCA-Mln participating in the complexation, and this binding triggers a photoinduced electron transfer (PET) process that provides a nonradiative deactivation pathway, resulting in fluorescence quenching; additionally, the probe exhibits a visible color change from purple to peach pink upon Fe³⁺ binding, enabling dual-channel detection. The probe has an excitation wavelength of 570 nm and an emission wavelength of 670 nm, and it shows a rapid response, with fluorescence stabilizing within 15 seconds of Fe³⁺ addition. DCA-Mln is cell-membrane-permeable, nontoxic at the imaging concentration of 10 μM, and can be used for Fe³⁺ detection in actual water samples, Fe³⁺ imaging in living cells, and as an anti-counterfeiting ink[1].
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- CAS No.: 455251-97-5
- Formule: C20H19N3O
- Masse moléculaire:317.38
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Stockage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Activité biologique
Guidelines (The following is a recommended experimental protocol provided for guidance only; please adjust according to actual requirements)
1. Stock Solution Preparation
1.1 Solvent: MeOH–H₂O (5/5, v/v).
1.2 Concentration recommendation: 10 μM.
2. Working Solution Preparation
2.1 Diluent: MeOH–H₂O (5/5, v/v); PBS buffer; filtered natural water/methanol (5/5, v/v); ethanol with a small amount of glycerin.
2.2 Working concentration: 10 μM.
2.3 Note: Adjust working solution concentration as needed; prepare fresh before use.
3. Staining Procedure
3.1 Sample type:[1]
3.1.1 Adherent cells (MCF-7 cells).
3.2 Incubation conditions: Incubate adherent cells with 10 μM DCA-Mln for 30 min; then incubate with 0–600 μM Fe³⁺ for 30 min.
3.3 Washing steps: Wash cells twice with PBS buffer.
4. Detection & Analysis
5.1 Instrument: Fluorescence imaging system; UV-vis spectrophotometer
5.1.1 Ex = 570 nm, Em = 670 nm.
5.2 Result analysis:
5.2.1 Fluorescence intensity changes: Strong red fluorescence intensity decreases with increasing Fe³⁺ concentration; solution fluorescence changes from strong pink to non-fluorescence upon Fe³⁺ addition.
5.2.2 Color changes: Solution color changes from purple to peach pink upon Fe³⁺ addition; anti-counterfeiting ink imprints are purple in daylight and bright pink under 365 nm UV light.
5.2.3 Fluorescence localization: Red fluorescence is present in the cytoplasm of living MCF-7 cells.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 455251-97-5
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Masse moléculaire 317.38
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Formule C20H19N3O
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SMILES
CCN(C1=CC=C2C=C3CCC(/C=C(C#N)/C#N)=C3OC2=C1)CC
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Please store the product under the recommended conditions in the Certificate of Analysis.
Pureté et documentation
Références
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)