2-Naphthylamine-5,7-disulfonic acid supplier

Name
2-Naphthylamine-5,7-disulfonic acid
EINECS 204-246-1
CAS No. 118-33-2
Article Data14
CAS DataBase
Density 1.77 g/cm³
Solubility 229g/L at 15℃
Melting Point
Formula C₁₀H₉NO₆S₂
Boiling Point 568.34℃[at 101 325 Pa]
Molecular Weight 303.317
Flash Point
Transport Information UN 1759
Appearance
Safety
Risk Codes
Molecular Structure
Hazard Symbols
Synonyms 6-aminonaphthalene-1,3-disulfonic acid;2-Amino-5, 7-naphthalenedisulfonic acid;2-Naphthylamine, 5,7-disulfo-;Kyselina amino-i;.beta.-Naphthylamine-5,7-disulfonic acid;6-AMINO-NAPHTHALENE-1,3-DISULFONIC ACID;Naphthalene-1,3-disulfonic acid, 6-amino-;6-Amino-1, 3-naphthalenedisulfonic acid;Amino-J-acid;Amino-I acid;1,3-Naphthalenedisulfonic acid,6-amino-;2-Aminonaphthalene-5,7-disulfonic acid;6-Amino-1,3-naphthalenedisulfonic acid;2-Naphthylamine-5, 7-disulfonic acid;2-Naftylamin-5,7-disulfonan sodny;Amino-J acid;1, 3-Naphthalenedisulfonic acid, 6-amino-;
PSA 151.52000
LogP 3.65820

Synthetic route

: 81-05-0
6-aminonaphthalene-1-sulfonic acid

A: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

B: 117-62-4
2-amino-1,5-naphthalenedisulfonic acid

Conditions

Conditions	Yield
With sulfuric acid at 20℃;
With sulfuric acid

: 55524-84-0
2-Aminonaphthalene-1,5,7-trisulfonic acid

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

Conditions

Conditions	Yield
With mineral acid

: 7664-93-9
sulfuric acid

: 494-44-0
7-aminonaphthalene-2-sulfonic acid

A: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

B: 78887-55-5
6-amino-1,4-naphthalene disulfonic acid

C: 46968-48-3
2-Aminonaphthalene-1,7-disulfonic acid

...Expand

: 91-59-8
naphthalen-2-ylamine

oleum: oleum

A: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

B: 86-65-7
2-aminonaphthalene-6,8-disulfonate

Conditions

Conditions	Yield
at 50 - 85℃; Eingiessen in Eiswasser, Filtrieren und Erhitzen des Filtrats zum Sieden;
Giessen in Eiswasser;

...Expand

: 494-44-0
7-aminonaphthalene-2-sulfonic acid

A: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

B naphthylamine-(2)-disulfonic acid-(1.7); naphthylamine-(2)-disulfonic acid-(4.7): naphthylamine-(2)-disulfonic acid-(1.7); naphthylamine-(2)-disulfonic acid-(4.7)

Conditions

Conditions	Yield
With sulfuric acid

: 55524-84-0
2-Aminonaphthalene-1,5,7-trisulfonic acid

diluted mineral acid: diluted mineral acid

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 7664-93-9
sulfuric acid

: 81-05-0
6-aminonaphthalene-1-sulfonic acid

A: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

B: 117-62-4
2-amino-1,5-naphthalenedisulfonic acid

...Expand

: 81-16-3
2-aminonaphthalenesulfonic acid

A: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

B: 86-65-7
2-aminonaphthalene-6,8-disulfonate

Conditions

Conditions	Yield
With sulfuric acid; sulfur trioxide In water	A n/a B 9.5 %.

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: sodium 6-iodonaphthalene-1,3-disulfonate

Conditions

Conditions	Yield
Stage #1: 6-amino-naphthalene-1,3-disulfonic acid With hydrogenchloride; sodium nitrite In water at 0 - 5℃; Stage #2: With hydrogenchloride; sodium iodide In water at 0 - 50℃;	33%

: 75-44-5
phosgene

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 104954-42-9
6,6'-ureylene-bis-naphthalene-1,3-disulfonic acid

Conditions

Conditions	Yield
With sodium carbonate

: 14368-49-1
p-nitrobenzenediazonium

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 63251-40-1
2-(4-aminophenyl)-2H-naphtho[1,2-d][1,2,3]triazole-6,8-disulfonic acid

: 305-80-6
4-diazobenzenesulfonic acid

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 73692-57-6
5,6-diamino-naphthalene-1,3-disulfonic acid

Conditions

Conditions	Yield
Reduktion der entstandenen Azoverbindung mit Zinnchloruer und Salzsaeure;

: 5957-03-9
Diphenyl-4,4'-bis-diazonium

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 121499-90-9
2H,2'H-2,2'-biphenyl-4,4'-diyl-bis-naphtho[1,2-d][1,2,3]triazole-6,8-disulfonic acid

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 575-05-3
6-hydroxy-naphthalene-1,3-disulfonic acid

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 494-44-0
7-aminonaphthalene-2-sulfonic acid

Conditions

Conditions	Yield
With sodium amalgam

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 87-02-5
1-hydroxy-6-amino-3-naphthalenesulfonic acid

Conditions

Conditions	Yield
durch Alkalischmelze;
With alkali at 180℃;

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 6094-26-4
naphthalene-1,3-disulfonic acid

Conditions

Conditions	Yield
durch Austausch von NH2 gegen Wasserstoff;

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 55524-84-0
2-Aminonaphthalene-1,5,7-trisulfonic acid

Conditions

Conditions	Yield
With sulfuric acid

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 102879-08-3
6-chloro-naphthalene-1,3-disulfonic acid

Conditions

Conditions	Yield
durch Ersatz von NH2 durch Cl nach dem SANDMEYERschen Verfahren;

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 62-53-3
aniline

: 119-40-4
2-phenylamino-5-hydroxynaphthalene-7-sulphonic acid

Conditions

Conditions	Yield
With aniline hydrochloride man macht mit Soda alkalisch, dampft ein und erhitzt mit Kalilauge auf 210-220grad;

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 98-59-9
p-toluenesulfonyl chloride

: 6-(toluene-4-sulfonylamino)-naphthalene-1,3-disulfonic acid

Conditions

Conditions	Yield
With sodium acetate

: 5957-03-9
Diphenyl-4,4'-bis-diazonium

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 93-00-5
Bronner acid

: 2-[4'-(7-sulfo-naphtho[1,2-d][1,2,3]triazol-2-yl)-biphenyl-4-yl]-2H-naphtho[1,2-d][1,2,3]triazole-6,8-disulfonic acid

...Expand

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 121-60-8
p-acetylaminobenzenesulfonyl chloride

: 6-sulfanilylamino-naphthalene-1,3-disulfonic acid

Conditions

Conditions	Yield
With sodium hydroxide Erwaermen des Reaktionsprodukts mit wss. Salzsaeure;

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

: 121-90-4
m-nitrobenzoic acid chloride

: 157872-01-0
6-(3-nitro-benzoylamino)-naphthalene-1,3-disulfonic acid

Conditions

Conditions	Yield
With alkali

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

diazotized 4'-chloro-biphenyl-4-ylamine: diazotized 4'-chloro-biphenyl-4-ylamine

: 2-(4'-chloro-biphenyl-4-yl)-2H-naphtho[1,2-d][1,2,3]triazole-6,8-disulfonic acid

Conditions

Conditions	Yield
With pyridine und anschliessenden Erwaermen mit wss.CuSO4;

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

diazotized 2-<3-amino-phenyl>--disulfonic acid-(5',7'): diazotized 2-<3-amino-phenyl>--disulfonic acid-(5',7')

: 6-hydroxy-2-[3-(6-hydroxy-8-sulfo-1(3)H-naphth[1,2-d]imidazol-2-yl)-phenyl]-2H-naphtho[1,2-d][1,2,3]triazole-8-sulfonic acid

Conditions

Conditions	Yield
und oxydiert die Azoverbindung und verschmilzt die erhaltene Tetrasulfonsaeure mit Alkali;

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

diazotized 2-<4-amino-phenyl>-2H-naphtho<1,2-d><1,2,3>triazole-6,8-disulfonic acid: diazotized 2-<4-amino-phenyl>-2H-naphtho<1,2-d><1,2,3>triazole-6,8-disulfonic acid

: 2H,2'H-2,2'-p-phenylene-bis-naphtho[1,2-d][1,2,3]triazole-6,8-disulfonic acid

Conditions

Conditions	Yield
und anschliessenden Erhitzen mit wss. NaClO;

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

sodium amalgam: sodium amalgam

: 494-44-0
7-aminonaphthalene-2-sulfonic acid

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

alkali: alkali

: 87-02-5
1-hydroxy-6-amino-3-naphthalenesulfonic acid

Conditions

Conditions	Yield
at 160 - 180℃;

: 75-44-5
phosgene

: 118-33-2
6-amino-naphthalene-1,3-disulfonic acid

natrium carbonate: natrium carbonate

: 104954-42-9
6,6'-ureylene-bis-naphthalene-1,3-disulfonic acid

...Expand

2-Naphthylamine-5,7-disulfonic acid Chemical Properties

IUPAC Name: 6-Aminonaphthalene-1,3-disulfonic acid
Synonyms : 6-Amino-1,3-naphthalenedisulfonic acid
Molecular Structure :
Molecular Formula : C₁₀H₉NO₆S₂
Molecular Weight : 303.30
CAS NO: 118-33-2
EINECS : 204-246-1
Index of Refraction: 1.733
Density: 1.769 g/cm³
Mol File: 118-33-2.mol
Appearance: 6-Aminonaphthalene-1,3-disulfonic acid (CAS NO. 118-33-2) is white shiny long prismatic needle-like crystal,
Product Categories: Intermediates of Dyes and Pigments;Anilines, Aromatic Amines and Nitro Compounds;Organic acids

2-Naphthylamine-5,7-disulfonic acid Uses

6-Aminonaphthalene-1,3-disulfonic acid (CAS NO. 118-33-2) is used for dye intermediates,mainly is the intermediates to produce J acid, double-J Acid, Phenyl J acid and scarlet acid.

2-Naphthylamine-5,7-disulfonic acid Production

Production methods: 6-Aminonaphthalene-1,3-disulfonic acid (CAS NO. 118-33-2) is derived from hydrolysis of 2 - Naphthylamine -1,5,7 - 3-sulfonic acid . put sulfuric acid, sodium sulfate and 2 - naphthylamine -1,5,7 - 3-sulfonic acid in water at 110-120 °C 4h, cooling and filtering, washing in sodium sulfate solution, filtered cake obtained , which is 6-Aminonaphthalene-1,3-disulfonic acid (CAS NO. 118-33-2).

2-Naphthylamine-5,7-disulfonic acid Toxicity Data With Reference

1.	skn-rbt 2 mg/24H SEV	85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1059.
2.	eye-rbt 750 µg/24H SEV	28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,189.
3.	orl-rat LD50:2000 mg/kg	28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,189.

Product Name

2-Naphthylamine-5,7-disulfonic acid

Synthetic route

2-Naphthylamine-5,7-disulfonic acid Chemical Properties

2-Naphthylamine-5,7-disulfonic acid Uses

2-Naphthylamine-5,7-disulfonic acid Production

2-Naphthylamine-5,7-disulfonic acid Toxicity Data With Reference

2-Naphthylamine-5,7-disulfonic acid Consensus Reports

2-Naphthylamine-5,7-disulfonic acid Safety Profile

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