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 |
 |
|
| 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) |
Related Products
Chemical Name: Methyl Green
CAS No.: 82-94-0
Molecular Fomula: C26H33ClN3+
Molecular weight:?423.02
Appearance:?liquid
Assay: ??99.0%
Chemical Name: 1,1,2,2-Tetrachloroethane
Other Name: Tetrachlorethane
CAS No.: 79-34-5
Molecular Formula: C2H2Cl4
Molecular Weight: 167.85
Appearance: Liquid
Chemical Name: Quercetin-3-O-sophoroside
CAS No.: 18609-17-1
Molecular Formula: C27H30O17
Molecular Weight: 626.52
Chemical Name: Basic Red 2
CAS No.:477-73-6
Molecular Fomula: C20H19ClN4
Molecular weight:?350.85
Appearance: solid
Assay: ??99.0%
Common English name: 5-iodo-2,3-dihydropyridazin-3-one
CAS No.: 825633-94-1
Molecular formula: C4H3IN2O
Molecular weight: 221.98
Sample: Available
Chemical Name: Choline salicylate
CAS No.: 2016-36-6
Molecular Formula: C12H19NO4
Molecular Weight: 241.28
Appearance: Red-Brown Crystal
Chemical Name: BASIC BLUE 99
Cas No.: 68123-13-7
Molecular Fomula: C19H20BrClN4O2
Molecular Weight: 451.75
Appearance:?Blue Powder
Chemical Name: Ammonium Iron(II) Sulfate
Synonyms: Diammonium iron bis(sulphate); iron (ii) ammonium sulfate
CAS No.: 10045-89-3
Molecular Formula: FeH5NO4S
Molecular Weight: 170.95
Chemical Name: Solvent Violet 37
CAS No.: 61969-50-4
Appearance: Blue-purple powder
Assay: 99%
Chemical Name: Zinc citrate
Synonyms: Zinc citrate trihydrate
CAS No.: 546-46-3
Molecular Formula: C6H8O7Zn
Molecular Weight: 257.5
Appearance: White powder
Pigment blue 29, also known as ultramarine blue, is a multi-component inorganic pigment (sulfur-containing sodium aluminosilicate), also known as cloud blue or ocean blue. Ultramarine is insoluble in water and is resistant to alkali, weather resistance and light resistance. However, it changes color when exposed to acid and has weak tinting and hiding power. Pigment blue 29 has a wide range of uses and is commonly used in coatings, plastics, resins, inks, construction, paper, detergents, painting pigments, cosmetics and other industries.
Chemical Name: Dehydrocholic acid
Synonyms: Acide dehydrocholique; Triketocholanic acid
CAS No.: 81-23-2
Molecular Formula: C24H34O5
Molecular Weight: 402.53
Appearance: Powder
