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.