2,7-Dihydroxynaphthalene Chemical Properties

Melting point:

185-190 °C (lit.)

Boiling point:

246.06°C (rough estimate)

Density 

1.0924 (rough estimate)

refractive index 

1.5418 (estimate)

storage temp. 

Store below +30°C.

solubility 

DMSO (Slightly), Methanol (Slightly)

pka

9.14±0.40(Predicted)

form 

Powder

color 

Gray

Water Solubility 

insoluble

BRN 

2042383

InChIKey

DFQICHCWIIJABH-UHFFFAOYSA-N

LogP

1.980 (est)

CAS DataBase Reference

582-17-2(CAS DataBase Reference)

NIST Chemistry Reference

2,7-Naphthalenediol(582-17-2)

EPA Substance Registry System

2,7-Naphthalenediol (582-17-2)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-37/39

WGK Germany 

2

RTECS 

QJ4780000

TSCA 

Yes

HS Code 

29072900

MSDS

• Language:English Provider:2,7-Dihydroxynaphthalene
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

2,7-Dihydroxynaphthalene Usage And Synthesis

Chemical Properties

Light yellow to grey needle crystal

Uses

2,7-Naphthalenediol is a reagent used in the preparation of monomers of high carbon materials. Also used in the synthesis of splitomicin analogues.

Uses

2,7-Dihydroxynaphthalene can be used as starting material for the synthesis of sulfonic acids and divinylnaphthalenes.

Uses

2,7-Dihydroxynaphthalene is a reagent used in the preparation of monomers of high carbon materials. Also used in the synthesis of splitomicin analogues.

Synthesis

2,7-Naphthalenediol [582-17-2], mp 194℃, is produced by caustic fusion of naphthalene-2,7- disulfonic acid or 2-hydroxynaphthalene-7-sulfonic acid at 300℃. It undergoes amination at 250℃ to give 2,7-naphthalenediamine and couples with diazotized anilines in the 1-position or in the 1,8-positions. It forms a resin with formaldehyde.

2,7-Dihydroxynaphthalene(582-17-2)Related Product Information

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• 1,6-DIHYDROXYNAPHTHALENE,2,5-DIHYDROXYNAPHTHALENE
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• 2,7-BIS(2-SULFOPHENYLAZO)-1,8-DIHYDROXYNAPHTHALENE-3,6-DISULFONIC ACID TETRASODIUM SALT
• 3-(5-CHLORO-2-HYDROXYPHENYLAZO)-4,5-DIHYDROXYNAPHTHALENE-2,7-DISULFONIC ACID DISODIUM SALT
• 1,3-DIHYDROXYNAPHTHALENE
• 2,7-BIS[(4-METHYL-2-SULFOPHENYL)AZO]-1,8-DIHYDROXYNAPHTHALENE-3,6-DISULFONIC ACID