CAS 2321-07-5

Fluoresceina

Descrizione:

Fluoresceina, con il numero CAS 2321-07-5, è un composto organico sintetico noto per le sue vivaci proprietà fluorescenti. Si presenta come una polvere verde brillante o un solido cristallino ed è solubile in acqua, alcol e altri solventi organici. Fluoresceina è caratterizzato dalla sua forte fluorescenza sotto luce ultravioletta, rendendolo ampiamente utilizzato come tracciante fluorescente in varie applicazioni, tra cui l'imaging biologico, la tintura e come indicatore di pH. La sua struttura molecolare consiste in un nucleo di xantene, che contribuisce alla sua fluorescenza, e presenta un'alta assorbanza molare, aumentando la sua visibilità nelle soluzioni. Fluoresceina è non tossico a basse concentrazioni, ma è necessario prestare attenzione per evitare esposizioni eccessive. Oltre al suo utilizzo nella ricerca scientifica, è impiegato anche nella diagnostica medica, in particolare in oftalmologia per valutare l'integrità corneale e in angiografia. In generale, Fluoresceina è un composto versatile con una significativa utilità sia in contesti di laboratorio che clinici.

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

Sinonimi:

• 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

Fluorescein

CAS: 2321-07-5

Formula: C₂₀H₁₂O₅

Colore e forma: Orange to Amber to Dark red powder to crystal

Peso molecolare: 332.31

Ref: 3B-F0095

Fluorescein

CAS: 2321-07-5

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

Formula: C₂₀H₁₂O₅

Purezza: 90+%

Colore e forma: Powder, Orange to red to brown

Peso molecolare: 332.31

Ref: 02-L13251

Fluorescein, indicator

CAS: 2321-07-5

Purezza: IND

Peso molecolare: 332.07

Ref: 10-F094738

FLUORESCEIN CRS

CAS: 2321-07-5

FLUORESCEIN CRS

Formula: C₂₀H₁₂O₅

Colore e forma: Orange. Red. Powder.

Peso molecolare: 332.3063

Ref: 41-Y0000796

Fluorescein

CAS: 2321-07-5

Synthetic organic coloring matter,nesoi

Formula: C₂₀H₁₂O₅

Colore e forma: Powder

Peso molecolare: 332.3 g/mol

Ref: 45-1277004

Fluorescein

CAS: 2321-07-5

Fluorescein (Solvent Yellow 94) is a phthalic indicator dye, use as a synthetic fluorescent tracer.

Formula: C₂₀H₁₂O₅

Purezza: 88.76% - 95.04%

Colore e forma: Red Orthorhombic Prisms Alkaline Solutions Exhibit Intense Greenish-Yellow Fluorescence By Reflected Light Low Toxicity May

Peso molecolare: 332.31

Ref: TM-T1392

Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-dihydroxy-

CAS: 2321-07-5

Formula: C₂₀H₁₂O₅

Purezza: 90%

Colore e forma: Solid

Peso molecolare: 332.3063

Ref: IN-DA002MJP

Fluorescein

CAS: 2321-07-5

Fluorescein

Purezza: 95%

Peso molecolare: 332.31g/mol

Ref: 54-OR1013317

Fluorescein

CAS: 2321-07-5

Fluorescein

Purezza: ≥80%

Peso molecolare: 332.31g/mol

Ref: 54-BUP19327

Fluorescein (C.I. 45350.1)

CAS: 2321-07-5

Formula: C₂₀H₁₂O₅

Purezza: 95.0 - 105.0 %

Colore e forma: Orange to red powder

Peso molecolare: 332.32

Ref: 7W-GT3509

Fluorescein

CAS: 2321-07-5

Fluorescein

Purezza: IND

Peso molecolare: 332.31g/mol

Ref: 54-OR1013318

Fluorescein

CAS: 2321-07-5

Formula: C₂₀H₁₂O₅

Peso molecolare: 332.31

Ref: 4Z-F-136001

Yellow No.201 for TLC RS

CAS: 2321-07-5

Colore e forma: Yellow-Brown To Red-Brown Solid Grains Or Powder

Ref: 2K-4026000021

Fluorescein

CAS: 2321-07-5

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.
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);

Formula: C₂₀H₁₂O₅

Colore e forma: Neat

Peso molecolare: 332.31

Ref: TR-F485250

Fluorescein Free Acid (C.I. No. 45350:1), 96%

CAS: 2321-07-5

Formula: C₂₀H₁₂O₅

Purezza: min. 96%

Colore e forma: Orange to red brown or maroon, Powder, Clear

Peso molecolare: 332.31

Ref: SR-50389

Fluorescein

CAS: 2321-07-5

M03615 - Fluorescein

Formula: C₂₀H₁₂O₅

Purezza: 90%

Colore e forma: Solid, Crystalline Powder or Powder

Peso molecolare: 332.311

Ref: 10-M03615

Fluorescein

CAS: 2321-07-5

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.
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.

Formula: C₂₀H₁₂O₅

Colore e forma: Powder

Peso molecolare: 332.31 g/mol

Ref: 3D-FF23342