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  4. Calcein Blue

Calcein Blue, a membrane-impermeant fluorescent dye, is a coumarin derivative that contains an iminodiacetic acid structure. Calcein Blue is also a metallofluorochromic indicator.

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Calcein Blue Chemical Structure

Calcein Blue Chemical Structure

CAS No. : 54375-47-2

Size Price Stock Quantity
Solution
10 mM * 1 mL in DMSO USD 66 In-stock
Solid
25 mg USD 60 In-stock
50 mg   Get quote  
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Based on 1 publication(s) in Google Scholar

Calcein Blue Related Antibodies

Top Publications Citing Use of Products

1 Publications Citing Use of MCE Calcein Blue

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Calcein Blue, a membrane-impermeant fluorescent dye, is a coumarin derivative that contains an iminodiacetic acid structure. Calcein Blue is also a metallofluorochromic indicator[1][2][3].

In Vitro

The fluorescence of Calcein Blue (CB) is quenched by the Fe2+ ion in the Calcein Blue-Fe2+ complex. When dopamine is added to a solution of the Calcein Blue-Fe2+ complex, a dopamine-Fe2+ complex is formed as the result of a ligand exchange reaction between Calcein Blue and dopamine which permits the fluorescence from Calcein Blue to be recovered. The fluorescence intensity at the wavelength of 440 nm (at the excitation wavelength of 340 nm) is found to be proportional to the concentration of the dopamine added to the Calcein Blue-Fe2+ complex solution, which permits dopamine to be quantitatively determined. The Calcein Blue-Fe2+ complex shows a high selectivity for dopamine among the catecholamines and related compounds examined[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Calcein Blue Related Antibodies
Molecular Weight

321.28

Formula

C15H15NO7
CAS No.
Appearance

Solid

Color

White to off-white

Emission (Em)

441
Excitation (Ex)

354
SMILES

O=C(O)CN(CC(O)=O)CC1=C(O2)C(C(C)=CC2=O)=CC=C1O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility
In Vitro: 

DMSO : 1 mg/mL (3.11 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H2O : < 0.1 mg/mL (insoluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.1125 mL 15.5627 mL 31.1255 mL
5 mM --- --- ---
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
Purity & Documentation
References
Cell Assay

The recommended final working concentrations is usually between 1 and 10 μM to minimize potential artifacts. Generally, 15 minutes to 1 hour is sufficient for cellular uptake and processing of the dyes. A stock concentration of 5 mM 4-methylumbelliferone-8- methyliminodiacetic acid, commonly known as calcein blue is prepared in 0.1 M potassium hydroxide, and the pH is neutralized using 0.1 N hydrochloric acid. The calcein blue stock prepared is diluted to 200 μM (working stock) in DPBS and stored for further use. A concentration of 10 μM calcein blue is prepared from the working stock by diluting in DPBS. From this, 200 μL is added to a 96-well plate and the excitation/emission (Ex./Em.) maximum is determined using the micro-plate reader[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 3.1125 mL 15.5627 mL 31.1255 mL 77.8137 mL
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Calcein Blue Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Calcein Blue54375-47-2Fluorescent DyeFluorescentdyedopamineFe2+coumariniminodiaceticacidmetallofluorochromicInhibitorinhibitorinhibit

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