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2,6-Naphthalenedisulfonic acid disodium salt
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Name

2,6-Naphthalenedisulfonic acid disodium salt

 EINECS 216-735-7
CAS No. 1655-45-4 Density 1.704g/cm3
PSA 131.16000 LogP 2.80960
Solubility N/A Melting Point >300 °C(lit.)
Formula C10H6Na2O6S2 Boiling Point N/A
Molecular Weight 332.266 Flash Point N/A
Transport Information N/A Appearance Grey powder
Safety 22-24/25 Risk Codes N/A
Molecular Structure Molecular Structure of 1655-45-4 (2,6-Naphthalenedisulfonic acid disodium salt) Hazard Symbols IrritantXi
Synonyms

2,6-Naphthalenedisulfonicacid, disodium salt (8CI,9CI);Disodium 2,6-naphthalenedisulfonate;Sodium naphthalene-2,6-disulfonate;2,6-naphthalene-disulphonate;

 

2,6-Naphthalenedisulfonic acid disodium salt Synthetic route

1655-45-4

disodium 2,6-naphthalenedisulfonate

581-43-1

2,6-Dihydroxynaphthalene

Conditions
ConditionsYield
With potassium hydroxide at 200℃; for 4h; Reagent/catalyst;96.9%
Stage #1: disodium 2,6-naphthalenedisulfonate With sodium hydroxide In water at 300℃; for 10h; Autoclave;
Stage #2: With tetrakis(actonitrile)copper(I) hexafluorophosphate; tetrahexylammonium chloride In hexane at 50℃; for 3h; Temperature; Reagent/catalyst;		85.2%

C68H82N6(2+)*2Cl(1-)

1655-45-4

disodium 2,6-naphthalenedisulfonate

C68H82N6(2+)*C10H6O6S2(2-)

Conditions
ConditionsYield
In dichloromethane; water at 20℃; for 2h;90.6%
1655-45-4

disodium 2,6-naphthalenedisulfonate

13827-62-8

2,6-naphthalenedisulfonyl dichloride

Conditions
ConditionsYield
With phosphorus pentachloride at 120℃; for 2h;88%
With chlorosulfonic acid In chloroform at 60℃; for 3h; Inert atmosphere; Cooling with ice;80%
With phosphorus pentachloride19.7%
66-71-7

1,10-Phenanthroline

nickel(II) nitrate hexahydrate

1655-45-4

disodium 2,6-naphthalenedisulfonate

[Ni(1,10-phenanthroline)2(2,6-naphthalenedisulfonate)(H2O)]*2H2O

Conditions
ConditionsYield
In water High Pressure; at 170°C under autogenous pressure for 50 h; cooled to ambient temp. in open air, decanted, washed (H2O), air-dried; elem. anal.;86%
1655-45-4

disodium 2,6-naphthalenedisulfonate

36396-19-7

4,4'-bis diethylamino diphenyl 4''-monoethylamino 1-naphthyl carbocation

2C33H40N3(1+)*C10H6O6S2(2-)

Conditions
ConditionsYield
In methanol; water at 50 - 55℃; for 1h;86%
1655-45-4

disodium 2,6-naphthalenedisulfonate

Victoria Pure Ink Blue BO

2C33H40N3(1+)*C10H6O6S2(2-)

Conditions
ConditionsYield
In water; toluene at 20℃; for 1h;86%
In methanol; water at 50 - 55℃; for 1h;86%
In methanol; water at 50 - 55℃; for 1h;86%
288-32-4

1H-imidazole

1655-45-4

disodium 2,6-naphthalenedisulfonate

5743-04-4

cadmium(II) acetate dihydrate

1253850-71-3

[Cd(imidazole)4(H2O)2][Cd(imidazole)4(2,6-naphthalenedisulfonate)2]

Conditions
ConditionsYield
In water disodium 2,6-naphthalenedisulfonate, imidazole added to aq. Cd(OAc)2; stirred for 4 h at 70°C; filtered; crystd. after 5 d; elem. anal.;85%

C70H78N6(2+)*Cl(1-)*Cl(1-)

1655-45-4

disodium 2,6-naphthalenedisulfonate

C70H78N6(2+)*C10H6O4S2(2-)

Conditions
ConditionsYield
Stage #1: disodium 2,6-naphthalenedisulfonate In methanol; water at 50 - 55℃;
Stage #2: C70H78N6(2+)*Cl(1-)*Cl(1-) at 50 - 55℃; for 1h;		84%

C70H78N6(2+)*Cl(1-)*Cl(1-)

1655-45-4

disodium 2,6-naphthalenedisulfonate

C70H78N6(2+)*C10H6O6S2(2-)

Conditions
ConditionsYield
In methanol; water at 50 - 55℃; for 1h;84%

C82H96N6(2+)*2Cl(1-)

1655-45-4

disodium 2,6-naphthalenedisulfonate

C82H96N6(2+)*C10H6O6S2(2-)

Conditions
ConditionsYield
In methanol; water at 50℃; for 1h;82%

2,6-Naphthalenedisulfonic acid disodium salt Chemical Properties

IUPAC  Name: Disodium naphthalene-2,6-disulfonate    
Empirical Formula: C10H6Na2O6S2
Molecular Weight: 332.2606 
Freely Rotating Bonds: 2
Polar Surface Area: 125.5 Å2 
Einecs: 216-735-7 
The Cas Register Number of  2,6-Naphthalenedisulfonicacid, sodium salt (1:2) is 1655-45-4.The chemical synonyms of  2,6-Naphthalenedisulfonicacid, sodium salt (1:2) (CAS NO.1655-45-4) are Disodium naphthalene-2,6-disulphonate .The molecular structure of  2,6-Naphthalenedisulfonicacid, sodium salt (1:2) (CAS NO.1655-45-4) is
.

2,6-Naphthalenedisulfonic acid disodium salt Uses

  2,6-Naphthalenedisulfonicacid, sodium salt (1:2) (CAS NO.1655-45-4) is used as pharmaceutical intermediate.

2,6-Naphthalenedisulfonic acid disodium salt Safety Profile

Hazard Codes: IrritantXi
Safety Statements: 22-24/25 
S22: Do not breathe dust. 
S24/25: Avoid contact with skin and eyes.
WGK Germany: 3
Hazard Note: Irritant

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