Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

46951

Sigma-Aldrich

Fluorescein isothiocyanate isomer I

≥97.5% (HPLC)

Synonym(s):

FITC, Fluorescein 5-isothiocyanate

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C21H11NO5S
CAS Number:
3326-32-7
Molecular Weight:
389.38
Beilstein/REAXYS Number:
1407295
EC Number:
222-042-0
MDL number:
MFCD00005063
UNSPSC Code:
12171500
PubChem Substance ID:
329757274

Quality Level

100

assay

≥97.5% (HPLC)

form

powder

impurities

≤1.5% Isomer II

mp

>360 °C (lit.)

solubility

acetone: soluble 0.1 g/10 mL

fluorescence

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

storage temp.

2-8°C

SMILES string

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

InChI key

MHMNJMPURVTYEJ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

Reagent for the FITC labeling of proteins; Microsequencing of proteins and peptides (HPLC)

pictograms

Health hazard
GHS08

signalword

Danger

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
Aram Ghalali et al.
Carcinogenesis, 35(7), 1547-1555 (2014-01-24)
Epidemiological studies indicate that statins, cholesterol-lowering drugs, prevent aggressive prostate cancer and other types of cancer. Employing essentially non-prostate cell lines, we previously showed that statins rapidly downregulate nuclear levels of phosphorylated Akt via P2X7, a purinergic receptor recently implicated
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
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
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service