Sodium fluorescein
Structural formula
| Business number | 05C4 |
|---|---|
| Molecular formula | C20H10Na2O5 |
| Molecular weight | 376.27 |
| label |
Acid Yellow 73, Fluorescein sodium salt, Fluorescent dyes |
Numbering system
CAS number:518-47-8
MDL number:MFCD00167039
EINECS number:208-253-0
RTECS number:LM5425000
BRN number:3833041
PubChem ID:None
Physical property data
1. Characteristics: Undetermined
2. Density (g/ cm3, 25/4℃): 1.601
3. Relative steam Density (g/cm3, air=1): Undetermined
4. Melting point (ºC): 320
5. Boiling point (ºC, normal Pressure): Undetermined
6. Boiling point (ºC, 8kPa): Undetermined
7. Refractive index: Undetermined
8. Flash point (ºC ): Undetermined
9. Specific optical rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (kPa, 25ºC): Not determined
12. Saturation vapor pressure (kPa, 60ºC): Not determined
13. Heat of combustion (KJ/mol): Not determined Determined
14. Critical temperature (ºC): Undetermined
15. Critical pressure (KPa): Undetermined
16. Oil and water (octanol/water ) Log value of distribution coefficient: Undetermined
17. Explosion upper limit (%, V/V): Undetermined
18. Explosion lower limit (%, V/V): Undetermined Confirm
19. Solubility: Soluble in water and ethanol, with strong green fluorescence and good water solubility.
Toxicological data
None yet
Ecological data
This substance may be harmful to the environment, and special attention should be paid to water bodies.
Molecular structure data
None yet
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 5
4. Number of rotatable chemical bonds: 1
5. Number of tautomers: none
6. Topological molecule polar surface area 89.5
7. Number of heavy atoms: 27
8. Surface charge: 0
9. Complexity: 644
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 3
Properties and stability
It turns yellow with weak fluorescence when exposed to concentrated sulfuric acid.It dilutes to a yellow precipitate, and its aqueous solution becomes a dark solution with dark green fluorescence after adding sodium hydroxide.
Storage method
Should be sealed and stored in a cool, dry place.
Use and store according to specifications, no decomposition will occur, and avoid contact with oxides
Synthesis method
None yet
Purpose
Uses the same as fluorescein.
