5-Dihydroxynaphthalene

2,6-Dibromo-1,5-diol 2,6-Dibromo-1,5-Dihydroxynaphthalene

Published by BDMAEE on 2024-01-12 | Permalink

Structural formula

Business number	01UT
Molecular formula	C10H6Br2O2
Molecular weight	317.96
label	2,6-dibromonaphthalene-1,5-diol, 2,6-dibromo-1,5-dihydroxynaphthalene, 2,6-dibromo-1,5-naphthodiol, 2,6-Dibromo-5-naphthalenediol

Numbering system

CAS number:84-59-3

MDL number:None

EINECS number:201-543-8

RTECS number:None

BRN number:None

PubChem ID:None

Physical property data

1. Character: needle crystal

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

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

4. Melting point (ºC): Melting point300℃ Above (224℃ Start decomposition)

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

6. Boiling point (ºC,5.2 kPa): 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. Steamnt-family: 宋体”>Piggy skinLD50：>2mg/kg

Ecological data

None yet

Molecular structure data

1. Molar refractive index:63.23

2. Molar volume (m³/mol）：152.7

3. isotonic specific volume (90.2K):442.1

4. Surface Tension (dyne/cm):70.1

5. Polarizability（10^-24cm³):25.06

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 3.8

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: 14

8. Surface charge: 0

9. Complexity: 190

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

Avoid light and store in an airtight container.

Synthesis method

None yet

Purpose

For organic synthesisBasic properties

“js”>Calculate chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 3.8

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: 14

8. Surface charge: 0

9. Complexity: 190

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

Avoid light and store in an airtight container.

Synthesis method

None yet

Purpose

For organic synthesisBasic properties

1,5-Dihydroxynaphthalene 1,5-Dihydroxynaphthalene

Published by BDMAEE on 2024-01-10 | Permalink

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.