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46950

Sigma-Aldrich

Fluorescein 5(6)-isothiocyanate

BioReagent, suitable for fluorescence, mixture of 2 components, ≥90% (HPLC)

Synonyme(s) :

FITC, Fluorescein isothiocyanate

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About This Item

Formule empirique (notation de Hill):
C21H11NO5S
Numéro CAS:
Poids moléculaire :
389.38
Numéro Beilstein :
1407295
Numéro CE :
Numéro MDL:
Code UNSPSC :
12171500
ID de substance PubChem :
Nomenclature NACRES :
NA.32

Gamme de produits

BioReagent

Pureté

≥90% (HPLC)

Fluorescence

λex 492 nm; λem 518 nm in 0.1 M phosphate pH 8.0

Adéquation

suitable for fluorescence

Température de stockage

−20°C

Chaîne SMILES 

Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5cc(ccc45)N=C=S)c1

InChI

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

Clé InChI

MHMNJMPURVTYEJ-UHFFFAOYSA-N

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Description générale

Fluorescein 5(6)-isothiocyanate, also known as FITC, is a weakly acidic hydroxyxanthene whose overall size is small, with both carboxylic acid and isothiocyanate substituents on the pendant phenyl ring. The dye has a moderately sized, nonplanar aromatic system. The isothiocyanate group reacts with nucleophilic substituents (e.g. amino, hydroxyl, thiol) of biomolecules to be attached as a fluorescent label. The maximum emission of the dye is at 519nm in the same solvent.

Application

Fluorescein 5(6)-isothiocyanate (FITC) labelled molecules are used in non-microscopic immunoassays and physiological tracing experiments. FITC is widely used in flow cytometry experiments for staining proteins, nuclei, and subnuclear particles. White blood cells (WBCs) are marked with FITC to study their response toward a chemoattractant, eventually being measured.
For fluorescent labeling of proteins (e.g. immunofluorescence); H Protein labeling for gel chromatography

Conditionnement

Bottomless glass bottle. Contents are inside inserted fused cone.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


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