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Key Documents

30181

Supelco

Fluorescein sodium salt

analytical standard

Sinonimo/i:

Acid Yellow 73, D&C;Yellow No. 8, NaFl, NaFluo, Sodium fluorescein, Uranine

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About This Item

Formula empirica (notazione di Hill):
C20H10Na2O5
Numero CAS:
Peso molecolare:
376.27
Colour Index:
45350
Beilstein:
3833041
Numero CE:
Numero MDL:
Codice UNSPSC:
85151701
ID PubChem:
NACRES:
NA.24

Grado

analytical standard

Livello qualitativo

Saggio

≥97.5% (HPLC)

Durata

limited shelf life, expiry date on the label

tecniche

HPLC: suitable
gas chromatography (GC): suitable

Impurezze

≤15% water

Fluorescenza

λex 460 nm; λem 515 nm(lit.)

Formato

neat

Stringa SMILE

[Na+].[Na+].[O-]c1ccc2c(Oc3cc([O-])ccc3C24OC(=O)c5ccccc45)c1

InChI

1S/C20H12O5.2Na/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20;;/h1-10,21-22H;;/q;2*+1/p-2
RGPLGPBQJOQFJS-UHFFFAOYSA-L

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Descrizione generale

Fluorescein sodium salt (uranine) is a xanthene dye, which finds applications as a fluorescent tracer and shows the best of fluorescence in the pH range 6 to 11. Uranine is also employed as a coloring additive in drugs and cosmetics. It is known to exhibit optical chemical sensing and fluorescent properties in biological staining procedures.

Applicazioni

Fluorescein sodium salt is used as an analytical standard in determining the formation of hydroxy radicals, by the ZnO-based photocatalysts under UV-filtered simulated sunlight using spectrofluorometry. It is also used as a calibration standard for the label-free measurements of metabolic events within cells in the living animals using fluorescence lifetime imaging microscopy (FLIM).
It may also be used as an analytical reference standard for the quantification of the analyte in the following:
  • Soil samples using high-performance liquid chromatography (HPLC).
  • Coffee samples using high-performance liquid chromatography (HPLC) and capillary electrophoresis (CZE).

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Risultati analitici

remarks on ICP: Na positive

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

423.7 °F - Pensky-Martens closed cup

Punto d’infiammabilità (°C)

217.6 °C - Pensky-Martens closed cup


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