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Fluorescein sodium  (Synonyms: Uranine sodium)

Cat. No.: HY-D0208 Purity: ≥95.0%
COA Handling Instructions

Fluorescein (Uranine) sodium is widely used as a fluorescent tracer in medicinal and biological applications and tumor infected tissues tracer. Fluorescein (Uranine) sodium is a representative green fluorophore that has been widely used as a scaffold of practically useful green fluorescent probes.

For research use only. We do not sell to patients.

Fluorescein sodium Chemical Structure

Fluorescein sodium Chemical Structure

CAS No. : 518-47-8

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100 mg USD 30 In-stock
500 mg USD 50 In-stock
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5 g   Get quote  

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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 2 publication(s) in Google Scholar

Other Forms of Fluorescein sodium:

Top Publications Citing Use of Products

2 Publications Citing Use of MCE Fluorescein sodium

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

Fluorescein (Uranine) sodium is widely used as a fluorescent tracer in medicinal and biological applications and tumor infected tissues tracer. Fluorescein (Uranine) sodium is a representative green fluorophore that has been widely used as a scaffold of practically useful green fluorescent probes[1][2].

In Vitro

Fluorescein is a synthetic organic photoactive dye compound soluble in water, alcohol and polar solvents[1].

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

Clinical Trial
Molecular Weight

376.27

Formula

C20H10Na2O5

CAS No.
Appearance

Solid

Color

Brown to reddish brown

SMILES

O=C1OC2(C3=C(OC4=C2C=CC(O[Na])=C4)C=C(O[Na])C=C3)C5=C1C=CC=C5

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

Solvent & Solubility
In Vitro: 

H2O : 20.83 mg/mL (55.36 mM; ultrasonic and warming and heat to 80°C)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.6577 mL 13.2883 mL 26.5767 mL
5 mM 0.5315 mL 2.6577 mL 5.3153 mL
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 (stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • 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
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation

Purity: ≥95.0%

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 (stored under nitrogen). 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
H2O 1 mM 2.6577 mL 13.2883 mL 26.5767 mL 66.4417 mL
5 mM 0.5315 mL 2.6577 mL 5.3153 mL 13.2883 mL
10 mM 0.2658 mL 1.3288 mL 2.6577 mL 6.6442 mL
15 mM 0.1772 mL 0.8859 mL 1.7718 mL 4.4294 mL
20 mM 0.1329 mL 0.6644 mL 1.3288 mL 3.3221 mL
25 mM 0.1063 mL 0.5315 mL 1.0631 mL 2.6577 mL
30 mM 0.0886 mL 0.4429 mL 0.8859 mL 2.2147 mL
40 mM 0.0664 mL 0.3322 mL 0.6644 mL 1.6610 mL
50 mM 0.0532 mL 0.2658 mL 0.5315 mL 1.3288 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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Fluorescein sodium 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.

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