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Name	Naphthalene-1,8-diol	EINECS	209-316-5
CAS No.	569-42-6	Density	1.33g/cm³
PSA	40.46000	LogP	2.25100
Solubility	N/A	Melting Point	142-143℃
Formula	C₁₀H₈O₂	Boiling Point	375.4 °C at 760 mmHg
Molecular Weight	160.172	Flash Point	193.5 °C
Transport Information	N/A	Appearance	N/A
Safety	26-39	Risk Codes	41
Molecular Structure		Hazard Symbols	Xi
Synonyms	1,8-Dihydroxynaphthalene;Naphthalene-1,8-diol;	Article Data	42

Naphthalene-1,8-diol Synthetic route

: 83-31-8
1,8-naphthosultone

: 569-42-6
1,8-dihydroxynaphthalene

Conditions

Conditions	Yield
With potassium hydroxide at 300℃; for 0.5h;	86%
With potassium hydroxide; water at 225℃; for 0.5h;	83%
With potassium hydroxide at 300℃; for 0.5h;	80%

: 1,1-dimethyl-1H,3H-naphtho[1,8-cd][1,2,6]oxasilaborinin-3-ol

: 569-42-6
1,8-dihydroxynaphthalene

Conditions

Conditions	Yield
With dihydrogen peroxide In tetrahydrofuran; methanol; dodecane at 20℃;	67%

: 1,8-naphthalenesultone

: 569-42-6
1,8-dihydroxynaphthalene

Conditions

Conditions	Yield
With potassium hydroxide for 0.25h; Inert atmosphere;	60%

: 1,8-naphthosultone

: 569-42-6
1,8-dihydroxynaphthalene

Conditions

Conditions	Yield
Stage #1: 1,8-naphthosultone With potassium hydroxide; sodium hydroxide at 210℃; for 0.75h; Inert atmosphere; Stage #2: With sulfuric acid; water at 0℃;	53%

: 117-22-6
8-hydroxy-naphthalene-1-sulfonic acid

: 569-42-6
1,8-dihydroxynaphthalene

Conditions

Conditions	Yield
at 230℃; in der Kalischmelze;

: 83-65-8
4,5-dihydroxy-1-naphthalene-sulfonic acid

: 569-42-6
1,8-dihydroxynaphthalene

Conditions

Conditions	Yield
With sulfuric acid at 150℃;

: 603-72-5
1,8-naphthosultam

: 569-42-6
1,8-dihydroxynaphthalene

Conditions

Conditions	Yield
bei der Kalischmelze;

: furan-2,3,5(4H)-trione pyridine (1:1)

: 82-75-7
8-anilino-1-naphthalenesulfonate

A: 569-42-6
1,8-dihydroxynaphthalene

B: 2834-91-5
8-amino-1-naphthol

C: 117-22-6
8-hydroxy-naphthalene-1-sulfonic acid

D: 134-32-7
1-amino-naphthalene

Conditions

Conditions	Yield
at 220 - 300℃; im Autoklaven;

...Expand

: 82-75-7
8-anilino-1-naphthalenesulfonate

: 569-42-6
1,8-dihydroxynaphthalene

Conditions

Conditions	Yield
With sodium hydroxide at 220 - 230℃; unter Druck;
Multi-step reaction with 2 steps 1: 92 percent / NaNO2, aq. HCl / H2O / 1 h / Heating 2: KOH / neat (no solvent) / 1.75 h / 250 - 255 °C View Scheme

: 3588-75-8
8-methoxy-naphthalen-1-ol

A: 569-42-6
1,8-dihydroxynaphthalene

B: 930-73-4
1-methyl pyridinium iodide

Conditions

Conditions	Yield
With pyridine; pyridine hydroiodide at 115℃; Rate constant; LiI, KI, var. temp.;

Naphthalene-1,8-diol Chemical Properties

Molecular Structure of 1,8-Naphthalenediol (CAS NO.569-42-6):

IUPAC Name: naphthalene-1,8-diol
Empirical Formula: C₁₀H₈O₂
Molecular Weight: 160.1693
H bond acceptors: 2
H bond donors: 2
Freely Rotating Bonds: 2
Polar Surface Area: 18.46 Å²
Index of Refraction: 1.725
Molar Refractivity: 47.85 cm3
Molar Volume: 120.4 cm³
Surface Tension: 64.4 dyne/cm
Density: 1.33 g/cm³
Flash Point: 193.5 °C
Enthalpy of Vaporization: 64.73 kJ/mol
Boiling Point: 375.4 °C at 760 mmHg
Vapour Pressure: 3.62E-06 mmHg at 25°C
EINECS: 209-316-5
InChI
InChI=1/C10H8O2/c11-8-5-1-3-7-4-2-6-9(12)10(7)8/h1-6,11-12H
Smiles
c12c(O)cccc2cccc1O

Naphthalene-1,8-diol Specification

1,8-Naphthalenediol , with CAS number of 569-42-6, can be called 1,8-Dihydroxynaphthalene ; Naphthalene-1,8-diol .

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