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LC2709 Fluorescein sodium (C.I. 45350)extra pure |
| Order number | Packaging | Quantity | Price € |
| AC29709 | Metal can | 1 kg | Inquire |
| Product information | |
| Hill Formula | C20H10Na2O5 |
| HS Code | 3204 12 00 |
| EC number | 208-253-0 |
| Molar mass | 376.27 g/mol |
| CAS number | 518-47-8 |
| Chemical and physical data | |
| Solubility | 500 g/l (20 °C) |
| Melting point | >300 °C |
| Molar mass | 376.27 g/mol |
| Bulk density | 600 kg/m3 |
| pH value | 8.3 (10 g/l, H2O, 20 °C) |
| Safety information | |
| RTECS | LM5425000 |
| Storage class | 10 – 13 Other liquids and solids |
| WGK | WGK 1 slightly water endangering |
| Disposal | 3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C. |
| Toxicological data | |
| LD 50 oral | LD50 rat 6720 mg/kg |
| Specifications | |
| Assay (gravimetrically; calc. on dried substance) | ≥ 98 % |
| Identity – UV/VIS-Spectrum |
passes test |
| – IR-spectrum | passes test |
| pH (20 g/l, water) | 7.0 – 9.0 |
| Absorption maximum λ max (buffer pH 8.0) | 490 – 492 nm |
| Spec. Absorptivity A 1%/1cm (λ7m7ax; 0.005 g/l; buffer pH 8.0; calc. on dried substance) | ≥ 1950 |
| As (Arsenic) | ≤ 0.0002 % |
| Cd (Cadmium) | ≤ 0.001 % |
| Cu (Copper) | ≤ 0.01 % |
| Pb (Lead) | ≤ 0.002 % |
| Zn (Zinc) | ≤ 0.01 % |
| Acriflavine | passes test |
| TLC-Test | passes test |
| Loss on drying (110 °C) | ≤ 10 % |
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