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Fórmula empírica (notación de Hill):
C20H12O5
Número CAS:
Peso molecular:
332.31
EC Number:
219-031-8
UNSPSC Code:
12171500
NACRES:
NA.32
PubChem Substance ID:
MDL number:
Colour Index Number:
45350
Beilstein/REAXYS Number:
94324
Servicio técnico
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Permítanos ayudarleQuality Level
assay
>95.0% (HPLC)
form
powder or crystals
mol wt
332.31 g/mol
concentration
≤100% (2-(6-hydroxy-3-oxo-(3H)-xanthen-9-yl)benzoic acid)
technique(s)
titration: suitable
color
red
mp
320 °C
solubility
methanol: 0.1 g/10 mL, orange to very deep orange
λmax
486.0-501.0 nm
fluorescence
λex 490 nm; λem 514 nm in 0.1 M Tris pH 8.0
suitability
suitable for fluorescence
SMILES string
Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5ccccc45)c1
InChI
1S/C20H12O5/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
InChI key
GNBHRKFJIUUOQI-UHFFFAOYSA-N
Gene Information
human ... PTPN1(5770), PTPRF(5792)
General description
Fluorescein dye is the most commonly used fluorescent probe. It is used to stain epithelial defects and analyse the integrity of corneal epithelium. Fluorescein is used in the diagnosis of corneal perforation. Oral or intravenous fluorescein is used in fluorescein angiography to detect diabetic retinopathy and choroidal neovascular membrane.
Application
Fluorescein has been used:
- in the permeability assay of Caco-2 cells
- to test its suitability to serve as lifetime fluorescence standards
- as a fluorophore for the fast recovery of fluorescence peaks and fluorophore concentration in the presence of hemoglobin
- as a fluorescent probe in oxygen radical absorbance capacity (ORAC) assay
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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