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.
