1-amino-5-naphthol 5-amino-1-naphthol

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:83-55-6

mdl number:mfcd00041826

einecs number:201-486-9

rtecs number:none

brn number:none

pubchem number:24863445

physical property data

1. properties: colorless crystals

2. density (g/ml, 25/4℃): uncertain

3. relative vapor density (g/ml, air=1): uncertain

4. melting point (ºc): 192

5. boiling point (ºc, normal pressure): uncertain

6. boiling point (ºc, 5.2kpa): uncertain

7. refractive index: uncertain

8. flash point (ºc): uncertain

9. specific rotation (º): uncertain.

10. autoignition point or ignition temperature (ºc): uncertain

11. vapor pressure (kpa, 25ºc): uncertain

12. saturation vapor pressure (kpa, 60ºc): uncertain

13. heat of combustion (kj/mol): uncertain

14. critical temperature (ºc): uncertain

15. critical pressure (kpa): uncertain

16. log value of oil-water (octanol/water) partition coefficient: uncertain

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

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

19. solubility: slightly soluble in water, soluble in alkali solution . the aqueous solution reacts with ferric chloride to form a black precipitate.

toxicological data

none yet

ecological data

none yet

molecular structure data

1. molar refractive index: 50.21

2. molar volume (cm³/mol): 124.2

3. isotonic specific volume (90.2k ): 351.9

4. surface tension (dyne/cm): 64.3

5. polarizability (10^-24cm³): 19.90

compute chemical data

1. reference value for hydrophobic parameter calculation (xlogp): none

2. number of hydrogen bond donors: 2

3. number of hydrogen bond acceptors: 2

4. number of rotatable chemical bonds: 0

5. number of tautomers: 2

6. topological molecule polar surface area 46.2

7. number of heavy atoms: 12

8. surface charge: 0

9. complexity: 160

10. number of isotope atoms: 0

11. determine the number of atomic stereocenters: 0

12.���determine the number of atomic stereocenters: 0

13. determine the number of chemical bond stereocenters: 0

14. uncertain number of chemical bond stereocenters: 0

15. number of covalent bond units: 1

properties and stability

none yet

storage method

this product should be sealed and stored in a cool, dry place.

synthesis method

it is obtained by alkali melting of 1-naphthylamine-5-sulfonic acid.

purpose

dye intermediates. used to make azo dyes.