Fluorescein CAS #2321-07-5
Fluorescein is a synthetic organic compound that appears as a dark orange/red powder and is slightly soluble in water and alcohol. It is widely used as a fluorescent tracer for many applications.
Fluorescein is a fluorescent group commonly used in microscopes, dye lasers as gain media, forensic and serological detection of potential blood stains, and dye tracing. The maximum absorption wavelength of fluorescein is 494 nm, and the maximum emission wavelength is 521 nm (in water). The main derivatives are fluorescein isothiocyanate (FITC) and 6-FAM phosphorous amide in oligonucleotide synthesis.
Fluorescein CAS #2321-07-5
| Fluorescein Basic information |
| Product Name: | Fluorescein |
| Synonyms: | Fluorescein, C.I. 45350, synthesis grade;Fluorescein, C.I. 45350, extra pure;FluoresceinC.I.45350;Fluorescein, laser grade, pure, 99%;Fluorescein, pure;Fluorescein,highpuritystandard;D&CYellow#7;Spiroisobenzofuran-1(3H),9-9Hxanthen-3-one, 3,6-dihydroxy- |
| CAS: | 2321-07-5 |
| MF: | C20H12O5 |
| MW: | 332.31 |
| EINECS: | 219-031-8 |
| Product Categories: | Fluorescent;Xanthene;FUNDUSCEIN;Aromatics;Fluorescent Labels & Indicators;Heterocycles;Intermediates & Fine Chemicals;Pharmaceuticals;E-FFluorescent Probes, Labels, Particles and Stains;Fluorescein and Derivatives;Fluorescent Labels;Stains and Dyes;Stains&Dyes, A to |
| Mol File: | 2321-07-5.mol |
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| Fluorescein Chemical Properties |
| Melting point | 320???C(lit.) |
| Boiling point | 429.44??C (rough estimate) |
| density | 1.2739 (rough estimate) |
| refractive index | 1.5000 (estimate) |
| storage temp. | room temp |
| solubility | Solubility Insoluble in water, ether, benzene, chloroform; soluble in ethanol, methanol, acetone, Iethyl acetate, N,N-dimethylformamide |
| Colour Index | 45350 |
| form | Powder |
| pka | 2.2, 4.4, 6.7(at 25??) |
| color | Red to orange |
| PH Range | Pink uorescence (4.0) to green uorescence (6.0) |
| Water Solubility | insoluble |
| ??max | 493.5nm, 496nm, 460nm, 515nm |
| Merck | 14,4159 |
| BRN | 94324 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| Major Application | Organic light-emitting diode, nanoparticles, liquid crystal display, oil products, lip make-up, nucleic acid synthesis, amplification, sequencing and cloning, diagnosis of diabetic retinopathy, detecting yeast, multidrug resistance, proteins, antiHCV antibodies, target genes, enzymatic activity, nerve agent, nucleic acid sequences, imaging lung cancer, prostate cancer |
| Biological Applications | Detecting chromosomal aberration; diagnosing corneal diseases; marking/detecting insects; as antitumor agent; as antihistaminic agent; use in agriculture and plant cultivation; use in cosmetics; use in ophthalmology; as a substrate for measuring ??-amylases activity, elastases activity, esterases activity, ??-glucuronidases activity, horseradish peroxidases activity, kinases activity, monoamine oxidases (MAOs) activity, phosphatases activity, phospholipases activity, proteases/proteinases activity, telomerases activity activity |
| LogP | 2.980 (est) |
| CAS DataBase Reference | 2321-07-5(CAS DataBase Reference) |
| EPA Substance Registry System | Fluorescein (2321-07-5) |
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