
structural formula
| business number | 022s |
|---|---|
| molecular formula | c21h28n2o |
| molecular weight | 324.46 |
| label |
4,4′-bis(diethylamino)benzophenone, tetraethyl michler’s ketone, [(c2h5)2nc6h4]2co |
numbering system
cas number:90-93-7
mdl number:mfcd00009044
einecs number:202-025-4
rtecs number:os9545500
brn number:2148611
pubchem number:24848832
physical property data
1. properties: yellow fine leaf-like crystals
2. density (g/ml, 25/4℃): undetermined
3. relative steam density ( g/ml, air = 1): undetermined
4. melting point (ºc): 96.5
5. boiling point (ºc, normal pressure): undetermined
6. boiling point (ºc, 5.2kpa): not determined
7. refractive index: undetermined
8. flash point (ºc): 151
9. specific rotation (º): undetermined
10. autoignition point or ignition temperature (ºc): undetermined
11. vapor pressure (kpa, 25ºc): undetermined
12. saturated vapor pressure (kpa, 60ºc): undetermined
13. heat of combustion (kj/mol): undetermined
14. critical temperature (ºc): undetermined
15. critical pressure (kpa): undetermined
16. log value of oil-water (octanol/water) partition coefficient: undetermined
17. the upper limit of explosion (%, v/v): undetermined
18. the lower limit of explosion (%, v/v): undetermined
19. solubility: soluble in ethanol.
toxicological data
none
ecological data
none
molecular structure data
1. molar refractive index: 103.20
2. molar volume (cm3/mol): 309.5
3. isotonic specific volume (90.2k ): 790.0
4. surface tension (dyne/cm): 42.4
5. polarizability (10-24cm3): 40.91
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: 3
4. number of rotatable chemical bonds: 8
5. number of tautomers: none
6. topological molecule polar surface area 23.6
7. number of heavy atoms: 24
8. surface charge: 0
9. complexity: 326
10. number of isotope atoms: 0
11. determine the number of atomic stereocenters: 0
12. uncertain number of atomic stereocenters: 0
13. determined number of chemical bond stereocenters: 0
14. uncertain chemical bond stereocenters quantity: 0
15. quantity of covalent bond units: 1
properties and stability
none
storage method
this product should be kept sealed.
synthesis method
it is obtained by the reaction of n,n-diethylaniline and phosgene, and can also be synthesized by oxidation method.
purpose
it is mainly used to synthesize triarylmethane dyes, such as basic brilliant blue bo; it can also be used as a photosensitizer in the film industry; as a special optical material in the microelectronics industry; and it can also be used as a rubber cross-linking agent.

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