N-(3-hydroxy-2-naphthoyl)p-chloroaniline Naphthol AS-E
Structural formula
| Business number | 0257 |
|---|---|
| Molecular formula | C17H12ClNO2 |
| Molecular weight | 297.74 |
| label |
N-(3-hydroxy-2-naphthoyl)p-chloroaniline, DaitoGrounderE |
Numbering system
CAS number:92-78-4
MDL number:MFCD00021639
EINECS number:202-189-7
RTECS number:None
BRN number:None
PubChem ID:None
Physical property data
1. Characteristics: light beige powder
2. Density (g/mL,25/4℃)： Undetermined
3. Relative vapor density (g/mL,AIR=1): Undetermined
4. Melting point (ºC):258 -259℃
5. Boiling point (ºC,Normal pressure): Undetermined
6. Boiling point (ºC, 94.7kpa): 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. 90.2K):601.6
4. Surface Tension (dyne/cm):63.8
5. Polarizability（10-24cm3): 33.87
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 4.8
2. Number of hydrogen bond donors: 2
3. Number of hydrogen bond acceptors: 2
4. Number of rotatable chemical bonds: 2
5. Number of tautomers: 9
6. Topological molecule polar surface area 49.3
7. Number of heavy atoms: 21
8. Surface charge: 0
9. Complexity: 368
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
None
Storage method
This product should be sealed and stored in a cool place.
Synthesis method
With2,3-Acid and p-chloroaniline are the basic raw materials,2,3-The acid is salted with sodium carbonate and chlorobenzene, and after dehydration, in the presence of phosphorus trichloride Condensate with p-chloroaniline, neutralize with sodium carbonate, steam out chlorobenzene, then filter and dry to obtain the finished product. The finished product is obtained after drying. Product requirements: naphthol content ≥95%, the insoluble matter content in the alkali solution ≤1.0%,2,3-Acid content≤1.0%, initial melting point of dry product ≥260℃.
Purpose
It is mainly used as a primer for cotton fabric dyeing and printing, and can also be used as an intermediate for organic pigments. It is used as a primer for cotton fiber dyeing and printing, and as an intermediate for lake pigments.
N-US style=”FONT-SIZE: 9pt; FONT-FAMILY: Arial; mso-font-kerning: 0pt”>1.0%,2,3-Acid content≤1.0%, initial melting point of dry product ≥260℃ .
Purpose
It is mainly used as a primer for cotton fabric dyeing and printing, and can also be used as an intermediate for organic pigments. It is used as a primer for cotton fiber dyeing and printing, and as an intermediate for lake pigments.