flavanones
Structural formula
| Business number | 0539 |
|---|---|
| Molecular formula | C15H12O2 |
| Molecular weight | 224.25 |
| label |
2,3-dihydroxyfluorene, 2,3-Dihydroflavone |
Numbering system
CAS number:487-26-3
MDL number:MFCD00006841
EINECS number:207-654-8
RTECS number:LK6906500
BRN number:183227
PubChem number:24846563
Physical property data
1. Character: Undetermined
2. Density (g/ m3,25/4℃): Undetermined
3. Relative vapor density (g/cm3,AIR=1): Undetermined
4. Melting point (ºC): 75-78
5. Boiling point (ºC,Normal pressure): Undetermined
6. Boiling point (ºC,5.2kPa): Undetermined
7. Refractive Index: Undetermined
8. Flash Point (ºF): Undetermined
9. Specific optical rotation (º): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (kPa,25ºC): Undetermined
12. Saturation vapor pressure ( kPa,60ºC): Undetermined
13. Heat of combustion (KJ/mol): Undetermined
14. Critical temperature (ºC): Undetermined
15. Critical pressure (KPa): Undetermined
16. Oil and water (octanol/Water) Logarithmic value of partition coefficient: undetermined
17. Explosion limit (%,V/V): Undetermined
18. Lower explosion limit (%,V/V): Undetermined
19. Solubility: Undetermined
Toxicological data
Acute toxicity: Oral administration to wild birds LD50: 75mg/kg, No details other than lethal dose;
Ecological data
This substance may be harmful to the environment, and special attention should be paid to water bodies.
Molecular structure data
1、 Molar refractive index:64.60
2、 Molar volume（m3/mol): 187.9
3、 Isotonic specific volume（90.2K）：489.8
4、 Surface tension（3.0 dyne/cm SPAN>):46.0
5、 Polarizability（0.5 10-24cm3):25.61
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: 2
4. Number of rotatable chemical bonds: 1
5. Number of tautomers: 2
6. Topological molecule polar surface area 26.3
7. Number of heavy atoms: 17
8. Surface charge: 0
9. Complexity: 281
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 1
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
Use and store according to specifications, no decomposition will occur, and avoid contact with oxides
Storage method
Save sealed and placed in a ventilated, dry environment
Synthesis method
None
Purpose
None