
structural formula
| business number | 051w |
|---|---|
| molecular formula | c15h10o4 |
| molecular weight | 254.24 |
| label |
chrysin; 5,7-dihydroxyflavone |
numbering system
cas number:480-40-0
mdl number:mfcd00006834
einecs number:207-549-7
rtecs number:lk8329050
brn number:233276
pubchem number:24893009
physical property data
1. character:light yellow powder
2. density (g/ m3,25/4℃): undetermined
3. relative vapor density (g/cm3 ,air=1): undetermined
4. melting point (ºc):284-286
5. boiling point (ºc,normal pressure): undetermined
6. boiling point (ºc,5.2kpa): 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): 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/log value of water) partition coefficient: undetermined
17. explosion limit (%,v/v): undetermined
18. lower explosion limit (%,v/v): undetermined
19. solubility: undetermined
toxicological data
mutagenicity data: inhibitiontest system for dna: human fibroblasts: 100ml/l
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:
2、 molar volume(m3/mol):176.1
3、 isotonic specific volume (90.2k):506.1
4、 surface tension(dyne/cm):68.2
5、 polarizability(10-24cm3):26.94
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): none
2. number of hydrogen bond donors: 2
3. number of hydrogen bond acceptors: 4
4. number of rotatable chemical bonds: 1
5. number of tautomers: 12
6. topological molecule polar surface area 66.8
7. number of heavy atoms: 19
8. surface charge: 0
9. complexity: 384
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: 1
properties and stability
use and store according to specifications, no decomposition will occur, and avoid contact with oxides
storage method
save in a sealed manner and place it in a ventilated and dry place to avoid contact with other oxides.
synthesis method
none yet
purpose
synthesize raw materials for anti-cancer, lowering blood lipids, preventing cardiovascular and cerebrovascular diseases, antibacterial, anti-inflammatory and other pharmaceutical ingredients.

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