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
Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
---|---|---|---|---|---|---|---|
SC0290 | 518-47-8 | C20H10Na2O5 | 376.28 | 3204.9000 | 60 Months |
Packings
25 g,100 g,1000 g |
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) | Min 1700 |
Safety Information and Hazard Symbols
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Risk Statement | |
Safety Statement | 22-24/25 |