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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. Acid Yellow 73, NaFl, NaFluo, Sodium fluorescein, Uranine
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Description
| 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) | Min 1700 |
Safety Information and Hazard Symbols
Safety Statement: 22-24/25
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