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Merck

46950

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
UNSPSC Code:
12171500
NACRES:
NA.32
PubChem Substance ID:
EC Number:
248-207-7
Beilstein/REAXYS Number:
1407295
MDL number:

Nom du produit

Fluorescein 5(6)-isothiocyanate, BioReagent, suitable for fluorescence, mixture of 2 components, ≥90% (HPLC)

InChI key

MHMNJMPURVTYEJ-UHFFFAOYSA-N

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

SMILES string

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

product line

BioReagent

assay

≥90% (HPLC)

Quality Level

form

powder

mol wt

389.38 g/mol

color

orange to dark orange
yellow to dark yellow

solubility

acetone: 0.1 g/10 mL, clear to very slightly hazy

fluorescence

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

suitability

suitable for fluorescence

storage temp.

−20°C

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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

General description

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.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Classe de stockage

11 - Combustible Solids

wgk

WGK 3

ppe

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


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Consulter la Bibliothèque de documents

Wenhuo Hu et al.
Blood, 125(14), 2206-2216 (2015-01-31)
Hematopoietic stem cells (HSCs) possess the ability to generate all hematopoietic cell types and to self-renew over long periods, but the mechanisms that regulate their unique properties are incompletely understood. Herein, we show that homozygous deletion of the miR-29a/b-1 bicistron
Eddie A James et al.
Arthritis & rheumatology (Hoboken, N.J.), 66(7), 1712-1722 (2014-03-26)
Rheumatoid arthritis (RA) is thought to be a T cell-mediated disease, based on its strong association with HLA class II alleles, clinical responsiveness to T cell-directed therapies, and the presence of CD4+ T cells in rheumatoid joints. The presence of
Marina Vivarelli et al.
Kidney international, 87(3), 602-609 (2015-01-08)
Alloimmune antenatal membranous nephropathy (MN) during pregnancy results from antibodies produced by a neutral endopeptidase (NEP)-deficient mother. Here we report two recent cases that provide clues to the severity of renal disease. Mothers of the two children had circulating antibodies
Benoit Malleret et al.
Blood, 125(8), 1314-1324 (2014-11-22)
Plasmodium vivax merozoites only invade reticulocytes, a minor though heterogeneous population of red blood cell precursors that can be graded by levels of transferrin receptor (CD71) expression. The development of a protocol that allows sorting reticulocytes into defined developmental stages
Luisa M Villar et al.
Annals of neurology, 76(2), 231-240 (2014-06-10)
To identify a biomarker distinguishing patients who, despite a primary progressive multiple sclerosis (PPMS) clinical course, may nonetheless benefit from immune therapy. The presence or absence of both immunoglobulin (Ig) G and IgM oligoclonal bands (OCB) was blindly examined in

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