Product Details
Chemical Name: Fluorescein
Synonyms: osin; 2-(6-Hydroxy-3-oxo-(3H)-xanthen-9-yl)benzoic acid
Molecular Structure:
Product Typical Properties
| Items | Specification |
| CAS No | 2321-07-5 |
| Molecular Formula | C20H12O5 |
| Molecular Weight | 332.31 |
| Maximum suction wavelength, λ (PH8.0), nm | 490.0-493 |
| Mass absorption fraction,
λ (PH8.0), L/cm•g |
≥200 |
| Loss on drying | ≤5.0 |
| Burning residue | ≤0.3 |
Function
The appearance of fluorescein is orange or light orange crystalline powder. Melting point 314-316 ℃ (decomposition). It is soluble in hot ethanol, glacial acetic acid and alkali solution, showing green fluorescence, and insoluble in water, benzene, chloroform and ether. It is a synthetic organic photosensitive dye compound.
Product Usage
- Fluorescein is an intermediate of amalgam red, which can be used as a fluorometric reagent for the determination of chlorine, bromine, iodine and sulfur ions; Oxidation-reduction indicator reagent; Biological stain.
- Fluorimetric analysis of sulfur ion, test of bromine, titration of chlorine, bromine and iodine. Adsorption indicator, redox indicator.
- Adsorption indicator; Oxidation-reduction indicator; Fluorimetric analysis of sulfur ion; Titration of chlorine, bromine and iodine
Product Packaging
25KG/Drum
Product Storage
Please store in a dry, cool and dark place
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