1,5-Dihydroxynaphthalene 1,5-Dihydroxynaphthalene
Structural formula
| Business number | 01U3 |
|---|---|
| Molecular formula | C10H8O2 |
| Molecular weight | 160.17 |
| label |
1,5-dihydroxynaphthalene, 1,5-Naphthodiol, 1,5-Dihydroxynaphthalene, Naphthalene-1,5-diol, 1,5-Naphthalenediol, C10H6(OH)2 |
Numbering system
CAS number:83-56-7
MDL number:MFCD00003980
EINECS number:201-487-4
RTECS number:QJ4740000
BRN number:2044951
PubChem number:24893367
Physical property data
1. Characteristics: white needle-like crystals.
2. Density (g/mL,25/4℃): Unsure
3. Relative vapor density (g/mL,air=1): Unsure
4. Melting point (ºC): 265 ℃
5. Boiling point (ºC,Normal pressure): Unsure
6. Boiling point (ºC,5.2kPa): Unsure
7. Refractive index: Uncertain
8. Flashpoint (ºC): 252℃
9. Specific optical rotation (º): Unsure.
10. Autoignition point or ignition temperature (ºC): Unsure
11. Vapor pressure (kPa,25ºC): Unsure
12. Saturated vapor pressure (kPa,60ºC3. isotonic ratio (90.2K):341.1
4. Surface Tension (dyne/cm):64.4
5. Polarizability（10-24cm3):18.97
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: 3
6. Topological molecule polar surface area 40.5
7. Number of heavy atoms: 12
8. Surface charge: 0
9. Complexity: 140
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 in Store in a cool and dry place.
Synthesis method
By1,5- Naphthalenedisulfonic acid is obtained by alkali fusion and acidification. Heat the sodium hydroxide solution to290℃, add while stirring1,5-Naphthalenedisulfonic acid, in280-300After adding the temperature between ℃, continue stirring30min . Cool and acidify with hydrochloric acid to pH6-7. Cool, filter and refine to obtain1,5-Dihydroxynaphthalene.
Purpose
For organic synthesis, Dye intermediates, pharmaceutical intermediates, photographic industry.
rial; mso-bidi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA”>℃, add while stirring1,5-Naphthalenedisulfonic acid, in280-300After adding between ℃, continue stirring30min. Cool and acidify with hydrochloric acid to pH6-7. Cool, filter and refine to obtain1,5-Dihydroxynaphthalene.
Purpose
For organic synthesis, Dye intermediates, pharmaceutical intermediates, photographic industry.
