n-(3-hydroxy-2-naphthoyl)p-chloroaniline

structural formula

• numbering system
• physical property data
• toxicological data
• ecological data
• molecular structure data
• computing chemical data
• more
  • properties and stability
  • storage method
  • synthesis method
  • purpose

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. saturation vapor pressure (kpa,60ºc): 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 of water: undetermined

17. explosion upper limit (%,v/v): undetermined

18. lower explosion limit (%,v/v): undetermined

19. solubility: soluble in o-dichlorobenzene, insoluble in water and sodium carbonate solution. it is yellow in sodium hydroxide solution.

toxicological data

none

ecological data

none

molecular structure data

1. molar refractive index: 85.44

2. molar volume (m³/mol）：212.8

3. isotonic specific volume (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 content of insoluble matter 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.

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