CAS 2321-07-5
:Fluorescein
Description:
Fluorescein, with the CAS number 2321-07-5, is a synthetic organic compound known for its vibrant fluorescent properties. It appears as a bright green powder or crystalline solid and is soluble in water, alcohol, and other organic solvents. Fluorescein is characterized by its strong fluorescence under ultraviolet light, making it widely used as a fluorescent tracer in various applications, including biological imaging, dyeing, and as a pH indicator. Its molecular structure consists of a xanthene core, which contributes to its fluorescence, and it exhibits a high molar absorptivity, enhancing its visibility in solutions. Fluorescein is non-toxic at low concentrations, but care should be taken to avoid excessive exposure. In addition to its use in scientific research, it is also employed in medical diagnostics, particularly in ophthalmology for assessing corneal integrity and in angiography. Overall, fluorescein is a versatile compound with significant utility in both laboratory and clinical settings.
Formula:C20H12O5
InChI:InChI=1/C20H12O5/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20/h1-10,21-22H
InChI key:InChIKey=GNBHRKFJIUUOQI-UHFFFAOYSA-N
SMILES:O=C1OC2(C=3C1=CC=CC3)C=4C(OC=5C2=CC=C(O)C5)=CC(O)=CC4
Synonyms:- 2-(6-Hydroxy-3-oxo-(3H)-xanthen-9-yl)benzoesaure
- 2-(6-hydroxy-3-oxo-(3H)-xanthen-9-yl)benzoic acid
- 3',6'-Dihydroxyfluoran
- 3',6'-Dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one
- 3',6'-Fluorandiol
- 3,6-Dihydroxyspiro[xanthene-9,3'-phthalide]
- 3′,6′-Dihydroxyfluoran
- 3′,6′-Dihydroxyspiro[2-benzofuran-3,9′-xanthene]-1-one
- 3′,6′-Dihydroxyspiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one
- 3′,6′-Fluorandiol
- 9-(o-Carboxyphenyl)-6-hydroxy-3-isoxanthenone
- Acide 2-(6-hydroxy-3-oxo-(3H)-xanthen-9-yl)benzoique
- Benzoic acid, 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-
- D and C Yellow No. 7
- D&C Yellow No. 7
- D&C Yellow 7
- F 0095
- Fluorescein
- Fluorescein acid
- Japan Yellow 201
- Japan Yellow No. 201
- Nsc 667256
- Resorcinolphthalein
- Solvent Yellow 94
- Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 3′,6′-dihydroxy-
- Yellow No. 201
- Yellow fluorescein
- acide 2-(6-hydroxy-3-oxo-(3H)-xanthene-9-yl)benzoique
- acido 2-(6-hidroxi-3-oxo-(3H)-xanten-9-il)benzoico
- Fluorescein Free Acid
- C.I. Solvent Yellow 94
- Fluorescein [BAN:JAN]
- 3,6-dihydroxyspiro[isobenzofuran-1(3H),9-xanthen]-3-one
- C.I. 45350.1
- C.I. 45350:1
- 2-(6-hydroxy-3-oxo-3h-xanthen-9-yl)-benzoicaci
- FLUORESCEIN, ALCOHOL SOLUBLE
- 3’,4’-dehydroxyfluoran
- ACID YELLOW 73
- CI NO 45350
- CI 45350:1
- RESORCINOL PHTHALEIN
- 3’,6’-dihydroxy-fluora
- CI 45350
- S NO 880
- 11712yellow
- See more synonyms
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Found 17 products.
Fluorescein
CAS:Formula:C20H12O5Color and Shape:Orange to Amber to Dark red powder to crystalMolecular weight:332.31Fluorescein
CAS:<p>Fluorescein is used as a fluorescent tracer for many applications including in a type of dye laser as the gain medium, in forensics and serology to detect latent blood stains and in dye tracing. It is used to localise multiple muscular ventricular septal defects during open heart surgery and confirm</p>Formula:C20H12O5Purity:90+%Color and Shape:Powder, Orange to red to brownMolecular weight:332.31FLUORESCEIN CRS
CAS:<p>FLUORESCEIN CRS</p>Formula:C20H12O5Color and Shape:Orange. Red. Powder.Molecular weight:332.3063Fluorescein
CAS:Synthetic organic coloring matter,nesoiFormula:C20H12O5Color and Shape:PowderMolecular weight:332.3 g/molFluorescein
CAS:<p>Fluorescein (Solvent Yellow 94) is a phthalic indicator dye, use as a synthetic fluorescent tracer.</p>Formula:C20H12O5Purity:88.76% - 95.04%Color and Shape:Red Orthorhombic Prisms Alkaline Solutions Exhibit Intense Greenish-Yellow Fluorescence By Reflected Light Low Toxicity MayMolecular weight:332.31Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-dihydroxy-
CAS:Formula:C20H12O5Purity:90%Color and Shape:SolidMolecular weight:332.3063Fluorescein (C.I. 45350.1)
CAS:Formula:C20H12O5Purity:95.0 - 105.0 %Color and Shape:Orange to red powderMolecular weight:332.32Fluorescein
CAS:<p>Applications A fluorescent tracer used for many applications. It is used in ophthalmology as a tool in the diagnosis of corneal abrasions, corneal ulcers and herpetic corneal infections. It can attach to certain biologically active molecules, thus allowing biologists to target the fluorophore to specific proteins or structures within cells. Dyes and metabolites.<br>References Drees, B.L. et al.: J. Biol. Chem., 271, 32168 (1996); Can. Med. Assoc. J., 80, 997 (1959); Taki, M. et al.: Prot. Eng. Des. Select., 17, 119 (2004);<br></p>Formula:C20H12O5Color and Shape:NeatMolecular weight:332.31Fluorescein Free Acid (C.I. No. 45350:1), 96%
CAS:Formula:C20H12O5Purity:min. 96%Color and Shape:Orange to red brown or maroon, Powder, ClearMolecular weight:332.31Fluorescein
CAS:<p>M03615 - Fluorescein</p>Formula:C20H12O5Purity:90%Color and Shape:Solid, Crystalline Powder or PowderMolecular weight:332.311Fluorescein
CAS:<p>Fluorescein is a fluorescent molecule often used in in vitro assays, immunohistochemistry, microscopy, and clinical analytics. Fluorescein is not a natural product and was first synthesized in 1871 by Adolf von Baeyer, a later Nobel-prize winner for his work on organic dyes. Fluorescein has an absorption maximum of 494 nm and an emission maximum of 512 nm; these values can however slightly change depending on the solution medium.<br>Fluorescein is used clinically in ophthalmology to assess the blood flow in the eye blood vessels and to detect eye injuries such as foreign bodies and possible abrasions. Interestingly, fluorescein has been found to possess peroxidase activity under certain conditions.</p>Formula:C20H12O5Color and Shape:PowderMolecular weight:332.31 g/molRef: 3D-FF23342
Discontinued product
![Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-dihydroxy-](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2FIN%2Fthumb%2FDA002MJP.jpg&w=3840&q=75)
