Acid Yellow 73, NaFl, NaFluo, Sodium fluorescein, Uranine
FLUORESCEIN SODIUM
C.I.No.45350 Sodium fluorescein is used as a fluorescent tracer to study blood-brain barrier (BBB) and blood-spinal cord barrier (BSCB) permeability in rodent models.
Fluorescein Sodium sult for sale
Article No.
03856
Grade
Purity
CAS No.
518-47-8
Molecular Formula
C20H10Na2O5
Molecular Weight
376.28
H.S. Code
3204.9000
Shelf Life
60 Months
Physical Properties
Physical state at 20 °C
Solid
Colour
Dark red crystalline
Odour
Odorless
pH value
8.3 at 10 g/l at 20 °C
Melting point/ Freezing point [°C]
> 300 °C
Solubility in water [% weight]
500 g/l at 20 °C
Partition coefficient Log Pow octanol / water at 20°C
-0.67
Specifications
Appearance
Orange-red to green-brown to dark brown powder
Identity (IR)
Confirms to structure
Loss on drying (at 105°C)
Max 10.0%
Absorption maxima (in buffer pH 8.0)
488 to 491 nm
UV absorbance ratio (P-15/P+15)
1.2 – 1.7
Specific absorptivity 1%/1cm (at λmax; buffer pH 8.0)
