1-Amino-8-naphthol-4-sulfonic acid 1-Amino-8-naphthol-4-sulfonic Acid

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:83-64-7

MDL number:MFCD00003992

EINECS number:201-491-6

RTECS number:QK1295000

BRN number:None

PubChem ID:None

Physical property data

1. Appearance: White needle-like crystal

2. Density (g/mL, 25/4℃): Uncertain

3. Relative vapor density (g/mL , air=1): Uncertain

4. Melting point (ºC): Uncertain

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: soluble in alkali solution, slightly soluble in water , insoluble in ethanol and ether.

Toxicological data

1. Acute toxicity:

Rat caliber LD50: 6210mg/kg;

2. Neurotoxicity:

Rabbit eye test: 500 mg/ 24HREACTION;

Ecological data

None yet

Molecular structure data

1. Molar refractive index: 59.80

2. Molar volume (cm³/mol): 147.0

3. Isotonic specific volume (90.2K ): 448.3

4. Surface tension (dyne/cm): 86.4

5. Polarizability (10^-24cm³): 23.70

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 1.4

2. Number of hydrogen bond donors: 3

3. Number of hydrogen bond acceptors: 5

4. Number of rotatable chemical bonds: 1

5. Number of tautomers: 14

6. Topological molecule polar surface area 109

7. Number of heavy atoms: 16

8. Surface charge: 0

9. Complexity: 350

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 yet

Storage method

This product should be sealed and stored away from light.

Synthesis method

It is obtained by alkali fusion and acidification of 1-naphthylamine-4,8-disulfonic acid at 200-230℃.

Purpose

Organic Synthesis. Dye intermediates. An important intermediate for the manufacture of acid dyes and leather dyes, and also used to synthesize Chicago SS acid, etc.