N-2-naphthyl-3-hydroxy-2-naphthylcarboxamide
Structural formula
| Business number | 03QD |
|---|---|
| Molecular formula | C21H15NO2 |
| Molecular weight | 313.35 |
| label |
Naphto AS-SW, Naphthol AS-SW, Naphthol AS-SW, C.I. Ice dye coupling component 7, 3-Hydroxy-N-(2-naphthyl)-2-naphthylcarboxamide, Ice dye coupling component 7, aromatic compounds |
Numbering system
CAS number:135-64-8
MDL number:MFCD00053488
EINECS number:205-208-7
RTECS number:None
BRN number:None
PubChem ID:None
Physical property data
None
Toxicological data
None
Ecological data
None
Molecular structure data
Molecular property data: 1、 Molar refractive index：98.39 2、 Molar volume(m3/mol ): 234.9 3、 Isotonic specific volume（90.2K）：669.5 4、 Surface tension(3.0 dyne/cm):65.9 5、 Polarizability0.5 10-24 cm3):39.00
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 5.5
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: 24
8. Surface charge: 0
9. Complexity: 451
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
This product is in the form of beige powder with a melting point of 243-244°C. It is soluble in chlorobenzene, insoluble in water and soda ash solution, and turns yellow in sodium hydroxide solution.
Storage method
None
Synthesis method
First, 2,3-acid is salted with sodium hydroxide and chlorobenzene, and then condensed with Tobaic acid and phosphorus trichloride, and then hydrolyzed, neutralized and post-treated with sodium dihydrogen phosphate to obtain the finished product. Raw material consumption (kg/t) 2,3-acid (100%) 750 Toburic acid (100%) 900 Phosphorus trichloride (100%) 230 Soda ash (98%) 388 Chlorobenzene (98%) 410
Purpose
Mainly used as primer for dyeing and printing cotton fabrics. And can be used instead of chromic acid AS.
metcnv tcsc=”0″ numbertype=”1″ negative=”True” hasspace=”False” sourcevalue=”24″ unitname=”cm” w:st=”on”>-24cm3):39.00
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): 5.5
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: 24
8. Surface charge: 0
9. Complexity: 451
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
This product is in the form of beige powder with a melting point of 243-244°C. It is soluble in chlorobenzene, insoluble in water and soda ash solution, and turns yellow in sodium hydroxide solution.
Storage method
None
Synthesis method
First, 2,3-acid is salted with sodium hydroxide and chlorobenzene, and then condensed with Tobaic acid and phosphorus trichloride, and then hydrolyzed, neutralized and post-treated with sodium dihydrogen phosphate to obtain the finished product. Raw material consumption (kg/t) 2,3-acid (100%) 750 Toburic acid (100%) 900 Phosphorus trichloride (100%) 230 Soda ash (98%) 388 Chlorobenzene (98%) 410
Purpose
Mainly used as primer for dyeing and printing cotton fabrics. And can be used instead of chromic acid AS.