Passa al contenuto
Merck
Tutte le immagini(7)

Documenti fondamentali

F7250

Sigma-Aldrich

Fluorescein isothiocyanate isomer I

≥90% purity (HPLC), powder

Sinonimo/i:

FITC, Fluorescein 5-isothiocyanate

Autenticatiper visualizzare i prezzi riservati alla tua organizzazione & contrattuali

Scegli un formato

50 MG
CHF 45.80
100 MG
CHF 70.90
250 MG
CHF 143.00
500 MG
CHF 264.00
1 G
CHF 440.00
5 G
CHF 1’560.00

CHF 45.80


Check Cart for Availability

Richiedi un ordine bulk

Scegli un formato

Cambia visualizzazione
50 MG
CHF 45.80
100 MG
CHF 70.90
250 MG
CHF 143.00
500 MG
CHF 264.00
1 G
CHF 440.00
5 G
CHF 1’560.00

About This Item

Formula empirica (notazione di Hill):
C21H11NO5S
Numero CAS:
Peso molecolare:
389.38
Beilstein:
1407295
Numero CE:
Numero MDL:
Codice UNSPSC:
12171500
ID PubChem:
NACRES:
NA.47

CHF 45.80


Check Cart for Availability

Richiedi un ordine bulk

Nome del prodotto

Fluorescein isothiocyanate isomer I, suitable for protein labeling, ≥90% (HPLC), powder

Saggio

≥90% (HPLC)

Stato

powder

tecniche

titration: suitable

Colore

orange to dark orange

Punto di fusione

>360 °C (lit.)

Solubilità

acetone: 1 mg/mL

Fluorescenza

λex 492 nm; λem 518 nm (green)

Compatibilità

suitable for protein labeling

applicazioni

diagnostic assay manufacturing
hematology
histology

Temperatura di conservazione

2-8°C

Stringa SMILE

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
MHMNJMPURVTYEJ-UHFFFAOYSA-N

Cerchi prodotti simili? Visita Guida al confronto tra prodotti

Descrizione generale

Fluorescein isothiocyanate (FITC) is yellow-orange in color with an absorption maximum at 495nm. Upon excitation, it emits a yellow-green color with an emission maximum at 525nm.
It is widely used to attach a fluorescent label to proteins via the amine group. The isothiocyanate group reacts with amino terminal and primary amines in proteins. It has been used for the labeling of proteins including antibodies and lectins.[1][2]
Fluorescein isothiocyanate isomer I has been proposed as a contact sensitizer.[3]

Applicazioni

Reagent for the FITC labeling of proteins; Microsequencing of proteins and peptides (HPLC)
Reagent for the FITC labeling of proteins; microsequencing of proteins and peptides (HPLC)
Biological applications include use as a fluorescent labeling reagent for proteins[4][5][6], a fluorescent reagent for protein tracing, and a reagent in the fluorescent antibody technique for the rapid identification of pathogens. It may be employed as the derivatization reagent for amphetamine, methamphetamine, 3,4-methylenedioxymethamphetamine and P-phenylethylamine in human urine during their capillary electrophoretic (CE) determination. It may be used for the preparation of fluorescent antibodies. It was employed for in vitro sensitization studies.

Pittogrammi

Health hazard

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Resp. Sens. 1 - Skin Sens. 1

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

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


Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number

Non trovi la versione di tuo interesse?

Se hai bisogno di una versione specifica, puoi cercare il certificato tramite il numero di lotto.

Possiedi già questo prodotto?

I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

Visita l’Archivio dei documenti

A Ramseier et al.
Electrophoresis, 19(16-17), 2967-2975 (1998-12-31)
Amines can easily be derivatized with fluorescein isothiocyanate isomer I (FITC) and analyzed by capillary electrophoresis (CE) using alkaline buffers with or without dodecyl sulfate micelles. This paper reports the CE analysis of FITC-derivatized amphetamine, methamphetamine, 3,4-methylenedioxymethamphetamine and beta-phenylethylamine in
Chromatographically pure fluorescein and tetramethylrhodamine isothiocyanates.
L C FELTON et al.
Analytical biochemistry, 2, 178-180 (1961-04-01)
S E Macatonia et al.
Immunology, 59(4), 509-514 (1986-12-01)
Lymph node cells taken 24 hr after skin-painting mice with the contact sensitizer fluorescein isothiocyanate (FITC) induce delayed-type hypersensitivity in recipient mice. Skin-painting increased the number of dendritic cells (DC) in the draining lymph nodes without significantly changing the number
Test of a two-pathway model for small-solute exchange across the capillary wall.
Fu BM
The American Journal of Physiology, 274, H2062-H2062 (1998)
Human monoclonal autoantibodies specific for the bullous pemphigoid antigen 1 (BPAg 1).
Peyron E
Journal of Immunology, 153, 1333-1333 (1994)

Articoli

Nitric oxide (NO) as a signal transporter in neurons, endothelial cells and in the immune system.

Questions

1–6 of 6 Questions  
  1. Are cell membranes of living cells permeable for FITC?

    1 answer
    1. FITC is not membrane permeable in healthy cells, it binds to surface proteins. Conjugates such as FITC-Dextran is an example of a more cell-permeable option.

      Helpful?

  2. Is the intensity of FITC (e.g., Product No. F7250) pH dependent?

    1 answer
    1. Yes; many articles have reported the pH dependence of the fluorescence of fluorescein derivatives. See the following references: Archives Biochem. Biophys., 133, 263 (1969); J. Immunol., 95, 1165 (1966); Archives Biochem. Biophys., 73, 1 (1958); Standard test for labeling efficiency of FITC with BSA: NCCLS Approved Standard: ASM-1, 2nd ed., June, 1975; Characterization of FITC-dyes by IR and TLC: Analytical Biochem., 29, 526 (1969); Fluorescent labeling of proteins: Proc. Nat. Acad. Sci.,  72, 459 (1975); Amer. J. Pathol., 34, 1081 (1958); Fluorescent labeling of a lectin: Meth. Enzymol., 81, 65 (1982).

      Helpful?

  3. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  4. After the FITC (e.g., Product No. F7250) is conjugated to the protein, what is the solution stability of the conjugated protein?

    1 answer
    1. The stability of the conjugated protein will be essentially the stability of the unconjugated protein.  Some conjugated proteins might be stable when stored at -20°C and other conjugated proteins will have better solution stability at 2-8°C  If the protein concentration is too low, this also has a negative effect upon the stability of the conjugated protein.

      Helpful?

  5. Is Product No. F7250, Fluorescein isothiocyanate isomer I, pharmaceutical grade?

    1 answer
    1. No. The product is considered suitable for research use only.

      Helpful?

  6. How stable is FITC Isomer 1 (e.g., Product No. F7250) once conjugated to an antibody?

    1 answer
    1. FITC can photo bleach fairly rapidly. The prepared solution should be stored in a dark container and protected from light. When viewing the antibody staining under a microscope, it is advisable to use subdued fluorescent light when possible. If the fluorescent light stays at one position for too long, photo bleaching is noticeable.

      Helpful?

Reviews

No rating value

Active Filters

Il team dei nostri ricercatori vanta grande esperienza in tutte le aree della ricerca quali Life Science, scienza dei materiali, sintesi chimica, cromatografia, discipline analitiche, ecc..

Contatta l'Assistenza Tecnica.