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46970

Sigma-Aldrich

Fluorescein sodium salt

p.a., for source staining

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C20H10Na2O5
CAS Number:
518-47-8
Molecular Weight:
376.27
Colour Index Number:
45350
Beilstein:
3833041
EC Number:
208-253-0
MDL number:
MFCD00167039
UNSPSC Code:
12171501
PubChem Substance ID:
329757279
NACRES:
NA.32

grade

for source staining
p.a.

Quality Level

100

form

powder

fluorescence

λex 460 nm; λem 515 nm(lit.)

SMILES string

[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

InChI key

RGPLGPBQJOQFJS-UHFFFAOYSA-L

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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.

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.

WGK

WGK 1

Flash Point(F)

423.7 °F

Flash Point(C)

217.6 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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