Tristains products are exclusively distributed by Dawn Scientific | Please visit www.dawnscientific.com to place your order.
  • Find SDS & COA
  • APPLICATION
    • Hematology Stains
    • Staining – Histology / Cytology
    • Eosins & Hematoxylins
Tristains products are exclusively distributed by Dawn Scientific | Please visit www.dawnscientific.com to place your order.
  • Quick Reagents
  • Histological stains
    • Dry Stains & Dyes
    • Stain Solution
  • Indicators
    • Indicator Solid
    • Indicator Solution
  • Solutions
  • Solvents
  • Contact us
  • Become Distributor
Menu
Click to enlarge
Tristains

S10089

Fluorescein W/S

CAS No
518-47-8
Synonym(s)
Acid Yellow 73; Uranine; Fluorescein disodium salt
Molecular Formula:
C20H10Na2O5
Molecular Weight:
376.27
EC Number:
208-253-0
Colour Index Number:
45350
PubChem CID:
9885981
MDL number:
MFCD00167039
Specification SDS
Share:
  • Description
  • Additional information
  • Reviews (0)
  • TECHNICAL INFORMATION
Description

Fluorescein W/S CAS: 518-47-8 | MF: C20H10O5•2Na | MW: 376.27, Buy now Histological Stains & Dyes for Histology, Cytology, Microbiology, Hematology & Biology Lab from TriStains. All Tristains products are exclusively distributed by Dawn Scientific Inc.

Fluorescein is an organic compound and dye that belongs to the triarylmethine dye family. It has a xanthene tricyclic structural motif and is available as a dark orange/red powder that is slightly soluble in water and alcohol. Fluorescein W/S is a modified form of fluorescein that has been chemically altered to enhance its water solubility. This is typically achieved by adding water-solubilizing functional groups, such as sulfonate (-SO3H) or carboxylate (-COO-) groups, to the fluorescein molecule. These water-soluble modifications make Fluorescein W/S more readily dispersible and stable in aqueous solutions.

TriStains provides a marketplace for histology and biological stains, which is comprehensive enough to encompass the peculiar requirements of laboratories specializing in Histology, Cytology, Microbiology, and Hematology. With a reputation for exceeding quality expectations, TriStains performance is outstanding which allows for resolution of cell and tissue components fundamental to life sciences to be clearly visualized. Each product under TriStains series is validated for accuracy, reliability and consistency. TriStains, which manufactures and markets stains and indicators in various packing, offers laboratories turn key solutions for all their staining and indicator needs, improving accuracy in every experiment.

Application :

  • Fluorescein W/S is used as a fluorescent tracer in various biomedical applications, such as Angiography to visualize blood vessels, Ophthalmic procedures to assess eye health, Cell and tissue labeling for microscopy and flow cytometry.
  • The water-soluble nature of fluorescein W/S makes it useful as a dye tracer in environmental studies, such Groundwater flow and contaminant transport investigations, Surface water quality assessments and Wastewater treatment system monitoring.
  • Fluorescein W/S is employed as a fluorescent marker in various analytical techniques, including High-performance liquid chromatography (HPLC), Capillary electrophoresis and Fluorescence spectroscopy.

Benefits :

  • Improved water solubility compared to the original fluorescein dye
  • Suitable for applications where a water-soluble fluorescent probe is required
  • Enhanced stability and dispersibility in aqueous solutions
Additional information
Brand

Tristains

Size

100g, 1Kg

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “Fluorescein W/S” Cancel reply

Your email address will not be published. Required fields are marked *


The reCAPTCHA verification period has expired. Please reload the page.

TECHNICAL INFORMATION
Application: : Fluorescein sodium salt is a sodium salt of fluorescein
Appearance : Powder
Storage : Solid
Solubility : Soluble in water (500 g/l) at 20° C, ethanol (slightly soluble),Insoluble in benzene, chloroform, ether. Soluble in glacial acetic acid; also soluble in alkal hydroxides or carbonates with a bright green fluoresence appearing red by transmitted light.
Storage : Store at room temperature
Melting Point : >300°C
Boiling Point : 662.6°C at 760 mmHg (Predicted)
Fluoresence : ex 490 nm, em 514 nm in 0.1 M Tris pH 9.0
pK Values : pKa: 4.40 (Predicted)

Fluorescein sodium salt is a disodium salt of fluorescein and a noted pH sensitive fluorophore. Fluorescein sodium salt has been utilized in studies as a drug model, as a penetrating dye and also as a fluorescein tracer. Fluorescein sodium salt has also been used in vitro to quantify root dentin demineralization. Additional reported uses include microscopy, as a gain medium in dye laser use and to detect latent blood stains in vitro. Common derivatives of Fluorescein include fluorescein isothiocyanate (FITC), eosin and Rose Bengal (sc-296278) and Rose Bengal sodium salt (sc-203757)

Related products

Fast Green F.C.F. Certified

Catalog: S10081
Buy Now

Methylene Blue Anhydrous

Catalog: S10118
Buy Now

Giemsa Stain Certified

Catalog: S10095
Buy Now

Acid Blue 29

Catalog: S10002
Buy Now

Malachite Green Oxalate

Catalog: S10111
Buy Now

Sudan IV Certified

Catalog: S10180
Buy Now

Acid Blue 40

Catalog: S10003
Buy Now

Eriochrome Blue Black B

Catalog: S10071
Buy Now
ABOUT
  • About Us
  • Contact Us
  • Privacy Policy
  • Terms & Conditions
RESOURCES
  • Useful Links
ACCREDITATION
  • ISO 9001:2015

© 2025 Tristains. All rights reserved

  • Quick Reagents
  • Histological stains
    • Dry Stains & Dyes
    • Stain Solution
  • Indicators
    • Indicator Solid
    • Indicator Solution
  • Solutions
  • Solvents
  • Contact us
  • Become Distributor
Categories
  • Scientific Articles
Recent Posts
  • S10097_webimg
    Hematoxylin
    April 4, 2024 No Comments
  • cytology-2
    Study Of Cytology
    March 1, 2024 No Comments
  • webimg-blog
    4,5- Dibromo fluorescein
    February 16, 2024 No Comments
OUR INSTAGRAM
8387 256
9892 98
4006 44
4940 888
8404 519
1884 280
2721 167
6172 279
8556 296
Recent Comments
    May 2025
    M T W T F S S
     1234
    567891011
    12131415161718
    19202122232425
    262728293031  
    « Apr    
    Categories
    • Scientific Articles
    May 2025
    M T W T F S S
     1234
    567891011
    12131415161718
    19202122232425
    262728293031  
    « Apr    
    Facebook Instagram linkedin