Fluorescein potassium salt CAS#: 6417-85-2; ChemWhat Code: 919455
Identification
| Product Name | Fluorescein potassium salt |
| IUPAC Name | dipotassium;3-oxospiro[2-benzofuran-1,9′-xanthene]-3′,6′-diolate |
| Molecular Structure | ![]() |
| CAS Registry Number | 6417-85-2 |
| EINECS Number | No data available |
| MDL Number | No data available |
| Beilstein Registry Number | No data available |
| Synonyms | dipotassium;3-oxospiro[2-benzofuran-1,9′-xanthene]-3′,6′-diolate |
| Molecular Formula | C20H13KO5 |
| Molecular Weight | 408.5 |
| InChI | InChI=1S/C20H12O5.2K/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20;;/h1-10,21-22H;;/q;2*+1/p-2 |
| InChI Key | DZSPMLRDMGJVAT-UHFFFAOYSA-L |
| Canonical SMILES | C1=CC=C2C(=C1)C(=O)OC23C4=C(C=C(C=C4)[O-])OC5=C3C=CC(=C5)[O-].[K+].[K+] |
| Patent Information | |
| No data available |
Physical Data
| Appearance | Pale yellow solid |
| Solubility | No data available |
| Flash Point | No data available |
| Refractive index | No data available |
| Sensitivity | No data available |
Spectra
| Description (UV/VIS Spectroscopy) | Solvent (UV/VIS Spectroscopy) | Comment (UV/VIS Spectroscopy) | Absorption Maxima (UV/VIS), nm | Ext./Abs. Coefficient, l·mol-1cm-1 |
| Spectrum | H2O | Remark: pH 10 | ||
| Spectrum | acetonitrile | Remark: + KOH | ||
| Spectrum | acetonitrile | Remark: + KOH | 512 | 103000 |
| acetonitrile, H2O | Ratio of solvents: 99:1. Remark: + KOH | 505 | ||
| dimethylformamide | Remark: + KOH | 520.5 | 116000 |
Route of Synthesis (ROS)
| No data available |
Safety and Hazards
| GHS Hazard Statements | Not Classified |
Other Data
| Transportation | NONH for all modes of transport |
| Under the room temperature and away from light | |
| HS Code | 290621 |
| Storage | Under the room temperature and away from light |
| Shelf Life | 2 years |
| Market Price | USD |
| Druglikeness | |
| Lipinski rules component | |
| Molecular Weight | 408.493 |
| logP | 2.658 |
| HBA | 3 |
| HBD | 0 |
| Matching Lipinski Rules | 4 |
| Veber rules component | |
| Polar Surface Area (PSA) | 89.49 |
| Rotatable Bond (RotB) | 2 |
| Matching Veber Rules | 2 |
| Use Pattern |
| Dyes and tracers |
| Water pollution tracking: In the field of environmental protection, it is used to track the diffusion path of pollutants in water bodies. |
| Fluorescent tracer: Commonly used to detect liquid flow path, leakage location, groundwater flow direction, water pipe leakage, etc. |
| Cell staining agent: Used as a fluorescent dye when observing cells, tissues or biological structures under a microscope. |
| Ophthalmological examination: Used for corneal staining test to check corneal damage or foreign matter (such as used with a blue light slit lamp). |
| Capillary electrophoresis, electrophoresis analysis: As a fluorescent labeling reagent to improve detection sensitivity. |
| Pipeline detection: Adding this dye to petrochemical, refrigeration, air conditioning and other systems, and irradiating with ultraviolet light can locate the leak point. |
| CIP validation: In the pharmaceutical and food industries, it is used to confirm whether the cleaning process is thorough. |
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Approved Manufacturers | |
| Watson Bio Ltd | https://www.watson-bio.com/ |
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Other Suppliers | |
| Watson International Limited | Visit Watson Official Website |
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