structural formula
| business number | 03bu |
|---|---|
| molecular formula | c11h15no |
| molecular weight | 177.25 |
| label |
4-diethylaminobenzaldehyde, n,n-diethylaminobenzaldehyde, p-(n,n-diethyl)benzaldehyde, n,n-diethyl-4-aminobenzaldehyde, p-diethylaminobenzaldehyde, p-diethylaminobenzaldehyde, 4-(n,n-diethyl)aminobenzaldehyde, 4-diethylaminobenzaldehyde, aromatic compounds |
numbering system
cas number:120-21-8
mdl number:mfcd00003382
einecs number:204-377-4
rtecs number:cu5612850
brn number:511102
pubchem number:24894106
physical property data
1. characteristics: yellow needle-shaped crystal
2. density (g/ml,25℃): undetermined
3. relative vapor density (g/ml,air=1): undetermined
4. melting point (ºc):39- 41
5. boiling point (ºc,normal pressure): undetermined
6. boiling point (ºc,2.27kpa):174
7. refractive index: undetermined
8. flashpoint (ºc): 165
9. specific rotation (º): undetermined
10. autoignition point or ignition temperature (ºc): undetermined
11. vapor pressure (mmhg,25ºc): undetermined
12. saturated vapor pressure (kpa, ºc): 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 the partition coefficient for water: undetermined
): 172.1
3. isotonic specific volume (90.2k):433.9
4. surface tension (dyne/cm):40.4
5. polarizability（10-24cm3):22.43
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: 4
5. number of tautomers: none
6. topological molecule polar surface area 20.3
7. number of heavy atoms: 13
8. surface charge: 0
9. complexity: 146
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
avoid contact with oxides.
storage method
save sealed in a cool, dry place. make sure the workspace has good ventilation. keep away from sources of fire and store away from oxidizing agents.
synthesis method
mix diethylaniline, methenamine and 90% ethanol, and heat to reflux. add glacial acetic acid and 90% formic acid and keep overnight. pour the reaction solution into pre-cooled hydrochloric acid, filter, and the crude product is reconstituted with acid and alkali
p-diethylaminobenzaldehyde is obtained by recrystallizing crystals and ethanol.
purpose
analytical reagents, organic intermediates.
after acid-base reconstitution
p-diethylaminobenzaldehyde is obtained by recrystallizing crystals and ethanol.
purpose
analytical reagents, organic intermediates.
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