rose acid
structural formula
| business number | 067v |
|---|---|
| molecular formula | c19h14o3 |
| molecular weight | 290.32 |
| label |
rosy acid, rose acid, aurin, c.i. 43800, anti-inflammatory and antibacterial |
numbering system
cas number:603-45-2
mdl number:mfcd00001624
einecs number:210-041-8
rtecs number:none
brn number:2055205
pubchem id:none
physical property data
physical property data: 1. appearance: white amorphous powder (methanol) 2. melting point (℃): 273–275
toxicological data
none
ecological data
3. ecological data:
1. other harmful effects: this substance may be harmful to the environment, and special attention should be paid to water bodies.
molecular structure data
5. molecular property data:
1. molar refractive index: 84.45
2. molar volume (cm3/mol): 220.6
3. isotonic specific volume (90.2k): 619.4
4. surface tension (dyne/cm): 62.1
5. polarizability (10-24cm3): 33.48
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): 3.9
2. number of hydrogen bond donors: 2
3. number of hydrogen bond acceptors: 3
4. number of rotatable chemical bonds: 2
5. number of tautomers: 6
6. topological molecule polar surface area 57.5
7. number of heavy atoms: 22
8. surface charge: 0
9. complexity: 457
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
1. basic properties
maximum absorption wavelength: 534.6, 479.5nm. irritating
storage method
2. storage
sealed and stored
synthesis method
3. introduction to the production method
it is produced by heating a mixture of phenol, oxalic acid and sulfuric acid.
purpose
iv. uses
acid-base indicator, ph6.8 (yellow) ~ 8.0 (red). a qualitative reagent for carbon dioxide in beverage water, it can also be used to distinguish human milk from cow’s milk. dye intermediates.
