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CAS No.: | 131-27-1 |
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Name: | 2-Amino-4,8-naphthalenedisulfonic acid |
Article Data: | 16 |
Molecular Structure: | |
Formula: | C10H9NO6S2 |
Molecular Weight: | 303.317 |
Synonyms: | 2-Naphthylamine-4,8-disulfonic acid;3-Amino-1,5-naphthalenedisulfonicacid;4,8-Disulfo-2-naphthylamine;7-Amino-1,5-naphthalenedisulfonic acid;C acid;NSC 7558;b-Naphthylamine-4,8-disulfonic acid;3-Aminonaphthalene-1,5-Disulphonic Acid; |
EINECS: | 205-020-5 |
Density: | 1.769 g/cm3 |
Boiling Point: | 205.8°C (rough estimate) |
Risk Codes: | 36/37/38 |
Safety: | 26-36/37/39 |
PSA: | 151.52000 |
LogP: | 3.65820 |
3-amino-1,5-naphthalenedisulfonic acid
Conditions | Yield |
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With iron; acetic acid |
Conditions | Yield |
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With sulfuric acid at 30 - 40℃; anschl. Nitrieren mit konz. Salpetersaeure bei 15-20grad und Reduzieren mit Eisen und Salzsaeure; |
Conditions | Yield |
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With sodium sulfide; sulfuric acid In water at 45℃; for 12h; Temperature; | |
With iron(III) oxide; hydrazine hydrate at 70 - 80℃; for 8h; | 225 g |
Conditions | Yield |
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Multi-step reaction with 3 steps 1: sulfuric acid / 30 °C 2: nitric acid / 6 h / 25 - 30 °C 3: iron(III) oxide; hydrazine hydrate / 8 h / 70 - 80 °C View Scheme |
Conditions | Yield |
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Stage #1: 3-amino-1,5-naphthalenedisulfonic acid With sodium carbonate In water pH=6; Stage #2: With hydrogenchloride; sodium nitrite at 0 - 5℃; for 1h; pH=2; Stage #3: 3-amino-4-methoxyacetanilide In water at 20℃; pH=4 - 6; Further stages.; | 91% |
3-chloro-5,6-diphenyl-1,2,4-triazine
3-amino-1,5-naphthalenedisulfonic acid
3-(5,6-Diphenyl-[1,2,4]triazin-3-ylamino)-naphthalene-1,5-disulfonic acid
Conditions | Yield |
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With triethylamine In benzene for 5h; Heating; | 75% |
biphenyl-4,4'-disulfonyl chloride
3-amino-1,5-naphthalenedisulfonic acid
3,3'-<4,4'-biphenyldiylbis(sulfonylamino)>bis(1,5-naphthalenedisulfonic acid) tetrasodium salt
Conditions | Yield |
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With pyridine for 5h; Heating; | 56% |
3-Aminophenylboronic acid
3-amino-1,5-naphthalenedisulfonic acid
Conditions | Yield |
---|---|
Stage #1: 3-amino-1,5-naphthalenedisulfonic acid With hydrogenchloride; sodium nitrite for 0.25h; cooling; Stage #2: 3-Aminophenylboronic acid With sodium hydroxide at 0 - 20℃; for 4h; Further stages.; | 10% |
Conditions | Yield |
---|---|
With sodium carbonate |
Conditions | Yield |
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With sodium hydroxide at 250 - 275℃; |
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Chemical Name: 2-Amino-4,8-naphthalenedisulfonic acid
IUPAC NAME: 3-aminonaphthalene-1,5-disulfonic acid
CAS No.: 131-27-1
EINECS: 205-020-5
Molecular Formula: C10H9NO6S2
Molecular Weight: 303.31 g/mol
Density: 1.769 g/cm3
Following is the structure of 3-AMINO-1,5-NAPHTHALENEDISULFONIC ACID (131-27-1):
The chemical synonymous of 3-AMINO-1,5-NAPHTHALENEDISULFONIC ACID (131-27-1) are 2-Ethylamino-4,8-dinaphthalene ; 2-Ethylamino-4,8-dinaphthalenedisulfonicacid ; 3-amino-1,5-naphthalenedisulfonic ; 3-amino-5-naphthalenedisulfonicacid ; 3-aminonaphthalene-1,5-disulphonicacid ; 4,8-disulfo-2-naphthalamine ; 5-Naphthalenedisulfonicacid,3-amino-1 ; acidiv
Product Categories about 3-AMINO-1,5-NAPHTHALENEDISULFONIC ACID (131-27-1) are Intermediates of Dyes and Pigments.
1. | eye-rbt 100 mg/24H MOD | 28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,189. | ||
2. | orl-rat LD50:11,400 mg/kg | 28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,189. |
Reported in EPA TSCA Inventory.
An eye irritant. See also SULFONATES. When heated to decomposition it emits very toxic fumes of NOx and SOx.
Risk Statements about 3-AMINO-1,5-NAPHTHALENEDISULFONIC ACID (131-27-1):
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements about 3-AMINO-1,5-NAPHTHALENEDISULFONIC ACID (131-27-1):
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.