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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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