1-amino-7-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:118-46-7

MDL number:MFCD00004031

EINECS number:204-252-4

RTECS number:QL3331000

BRN number:None

PubChem number:24878181

Physical property data

1. Properties: needle-like crystals.

2. Density (g/mL, 25/4℃): Undetermined

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

4. Melting point (ºC): 205-207

5. Boiling point (ºC, normal pressure): Undetermined

6. Boiling point (ºC, 5.2kPa): Undetermined

7. Refractive index: Undetermined

8. Flash point (ºC): Undetermined

9. Specific rotation (º): Undetermined Determined

10. Autoignition point or ignition temperature (ºC): Not determined

11. Vapor pressure (kPa, 25ºC): Not determined

12. Saturated vapor pressure (kPa, 60ºC): Undetermined

13. Heat of combustion (KJ/mol): Undetermined

14. Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined

17. Explosion upper limit ( %, V/V): Undetermined

18. Lower explosion limit (%, V/V): Undetermined

19. Solubility: Soluble in hot water and ethanol, soluble in It fluoresces blue in acid and alkali. It turns green-blue when encountering ferric chloride.

Toxicological data

1. Acute toxicity: mouse intravenous LD50: 180mg/kg

Ecological data

Slightly harmful to water.

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. Tautomers.Mass: 10

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. No 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

Stable at room temperature and pressure, avoid contact with strong oxidants.

Storage method

Stored in a cool, ventilated warehouse. Keep away from fire. should be kept away from oxidizer, do not store together. Equipped with the appropriate variety and quantity of fire equipment. Suitable materials should be available in the storage area to contain spills.

Synthesis method

It is obtained by alkali fusion and acidification of 1,7-aminonaphthalene sulfonic acid (1,7-Clif acid).

Purpose

Organic Synthesis. Dye intermediates. After acetylation, 1-acetamido-7-naphthol can be obtained, which is used to make azo dyes.