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Fluorescein sodium salt

SIGMA/46960 - BioReagent, suitable for fluorescence

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

CAS Number: 518-47-8
Empirical Formula (Hill Notation): C20H10Na2O5
Molecular Weight: 376.27
EC Number: 208-253-0
MDL Number: MFCD00167039
Linear Formula: C20H10Na2O5
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-46960-25G-F 25 g
 $18.40
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45-46960-100G-F 100 g
 $47.70
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45-46960-500G-F 500 g
 $148.00
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fluorescence λex 460 nm; λem 515 nm(lit.)
  λex 490 nm; λem 514 nm in 0.1 M Tris pH 8.0
form powder
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
InChI key RGPLGPBQJOQFJS-UHFFFAOYSA-L
product line BioReagent
Quality Level 200 
SMILES string [Na+].[Na+].[O-]c1ccc2c(Oc3cc([O-])ccc3C24OC(=O)c5ccccc45)c1
suitability suitable for fluorescence
technique(s) titration: suitable
Application: Fluorescein Sodium Salt (FSS) is used to conduct in-vivo skin studies.

Xanthene fluorophores, like Fluorescein Sodium Salt (FSS), are versatile compounds used across diverse fields of chemistry and life sciences.
General description: Fluorescein Sodium Salt (FSS) is a xanthene dye having a polycrystalline structure with a monoclinic system. Fluorescein is a synthetic organic compound available as a dark orange/red powder soluble in water and alcohol.
RIDADR NONH for all modes of transport
WGK Germany WGK 1
Flash Point(F) 423.7 °F - Pensky-Martens c
Flash Point(C) 217.6 °C - Pensky-Martens c
Colour Index Number 45350
UNSPSC 12171500

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