CAS 18861-78-4

fluorescein isothiocyanate isomer ii

Description:

Fluorescein isothiocyanate isomer II (CAS 18861-78-4) is a fluorescent dye commonly used in biological and biochemical applications, particularly for labeling proteins and antibodies. This compound is characterized by its bright green fluorescence, which is a result of its unique chemical structure that includes a fluorescein moiety. It is soluble in organic solvents and water, making it versatile for various experimental conditions. The isothiocyanate functional group allows for covalent bonding to amino groups in proteins, facilitating the creation of fluorescent conjugates. Fluorescein isothiocyanate isomer II is known for its stability under physiological conditions, although it can be sensitive to light and pH changes. Its fluorescence properties make it an invaluable tool in microscopy, flow cytometry, and other imaging techniques, enabling researchers to visualize and track biological processes in real-time. Proper handling and storage are essential to maintain its efficacy, as exposure to light and moisture can lead to degradation.

Formula: C₂₁H₁₁NO₅S

InChI: InChI=1/C21H11NO5S/c23-12-2-5-15-18(8-12)26-19-9-13(24)3-6-16(19)21(15)17-7-11(22-10-28)1-4-14(17)20(25)27-21/h1-9,23-24H

SMILES: c1cc2c(cc1N=C=S)C1(c3ccc(cc3Oc3cc(ccc13)O)O)OC2=O

Synonyms:

• Fluorescein-6-isothiocyanate
• FITC Isomer II
• 3',6'-dihydroxy-6-isothiocyanato-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one
• 3',6'-Dihydroxy-6-isothiocyanatospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one
• Fluorescein-4-isothiocyanate
• Fitc-Ii
• 6-Fluorescein Isothiocyanate
• 6-Fitc
• 2-(6-HYDROXY-3-OXO-3H-XANTHEN-9-YL)-4-ISOTHIOCYANATO-BENZOIC ACID
• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 3',6'-dihydroxy-6-isothiocyanato-
• FITC isoMer II [Fluorescein-6-isothiocyanate]
• FLUORESCEIN 6-ISOTHIOCYANATE, ISOMER 2
• Fluorescein Isothiocyanate
• 6-ISOTHIOCYANATO-FLUORESCEIN
• 3',6'-dihydroxy-5-isothiocyanatospiro[2-benzofuran-3,9'-xanthene]-1-one
• FLUORESCEIN ISOTHIOCYANATE (ISOMER II)
• Fluorescein6-Isothiocyanate(isomerII)&gt
• Fluorescein isothiocyante
• Fluorescein 6-Isothiocyanate (isoMer II)
• Fluorescein 6-isothiocyanate, >97.0%(HPLC)(T)

Fluorescein 6-Isothiocyanate (isomer II)

CAS: 18861-78-4

Formula: C₂₁H₁₁NO₅S

Purity: >97.0%(T)(HPLC)

Color and Shape: Yellow to Amber powder to crystal

Molecular weight: 389.38

Ref: 3B-F0783

Fluorescein 6-Isothiocyanate (isomer II)

CAS: 18861-78-4

Formula: C₂₁H₁₁NO₅S

Purity: 90%

Color and Shape: Solid

Molecular weight: 389.3807

Ref: IN-DA003QLT

3',6'-Dihydroxy-6-Isothiocyanato-3H-Spiro[Isobenzofuran-1,9'-Xanthen]-3-One

CAS: 18861-78-4

3',6'-Dihydroxy-6-Isothiocyanato-3H-Spiro[Isobenzofuran-1,9'-Xanthen]-3-One

Purity: 95%

Molecular weight: 389.38g/mol

Ref: 54-OR1025876

Fluorescein-6-isothiocyanate

CAS: 18861-78-4

Fluorescein-6-isothiocyanate is a fluorescein derivative, binds to nucleophilic reagents such as amines, thiols, and carbonyl groups on proteins.

Formula: C₂₁H₁₁NO₅S

Color and Shape: Solid

Molecular weight: 389.38

Ref: TM-T64942

6-FITC

CAS: 18861-78-4

Ref: 7W-GW5145

Fluorescein 6-Isothiocyanate, Isomer 2, 95%

Controlled Product

CAS: 18861-78-4

Stability Light Sensitive
Applications Fluorescent labeling reagent for proteins. Used in the fluorescent antibody technique for rapid identification of pathogens.
References Riggs, H.J.L., et al.: Amer. J. Pathol., 34, 1081 (1958), Mann, K.G. and Fish, W.W., Methods in Enz., 26, 28 (1972),

Formula: C₂₁H₁₁NO₅S

Purity: 95%

Color and Shape: Neat

Molecular weight: 389.38

Ref: TR-F485705

Fluorescein 6-isothiocyanate

CAS: 18861-78-4

Formula: C₂₁H₁₁NO₅S

Purity: ≥90%

Color and Shape: Solid

Molecular weight: 389.38

Ref: 10-F493371

Fluorescein 6-Isothiocyanate, Isomer 2

CAS: 18861-78-4

Formula: C₂₁H₁₁NO₅S

Molecular weight: 389.39

Ref: ST-EA-CP-F116032