• USA Home
  • 28803 - Fluorescein sodium salt


28803 Fluka

Fluorescein sodium salt

indicator, 98.5-100.5%

Synonym: Acid Yellow 73, D&C;Yellow No. 8, NaFl, NaFluo, Sodium fluorescein, Uranine

  • CAS Number 518-47-8

  • Empirical Formula (Hill Notation) C20H10Na2O5

  • Molecular Weight 376.27

  •  Beilstein Registry Number 3833041

  •  Colour Index Number 45350

  •  EC Number 208-253-0

  •  MDL number MFCD00167039

  •  PubChem Substance ID 24857309


Related Categories Adsorption Indicators, Analytical Reagents, Analytical/Chromatography, Biochemicals and Reagents, Fluorescein and Derivatives,
grade   indicator
assay   98.5-100.5% (calc. on dry substance)
loss   ≤10% loss on drying, 105 °C
anion traces   chloride (Cl-): ≤3500 mg/kg
  sulfate (SO42-): ≤1.2%
fluorescence   λex 460 nm; λem 515 nm(lit.)
suitability   complies for TLC


General description

Visit our Titration Center to learn more.

Price and Availability

TruPAGE™ Pre-cast Polyacrylamide Gels

TruPAGE™ Pre-cast Polyacrylamide GelsTruPAGE Gels run true every time!

  • . 2-Year Shelf Life
  • . Superior Band Resolution
  • . Strong & Tear Resistant
  • . Higher Capacity Wells

Customers Also Viewed


Reag. Ph. Eur., free acid

Fluorescein (free acid)

Dye content 95 %

Fluorescein sodium salt

used as fluorescent tracer

Fluorescein sodium salt

BioReagent, suitable for fluorescence

Fluorescein sodium salt

p.a., for source staining

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?