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| CAS No.: | 118-33-2 |
|---|---|
| Name: | 2-Naphthylamine-5,7-disulfonic acid |
| Article Data: | 14 |
| Molecular Structure: | |
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|
|
| Formula: | C10H9NO6S2 |
| Molecular Weight: | 303.317 |
| 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-; |
| EINECS: | 204-246-1 |
| Density: | 1.77 g/cm3 |
| Boiling Point: | 568.34℃[at 101 325 Pa] |
| Solubility: | 229g/L at 15℃ |
| Transport Information: | UN 1759 |
| PSA: | 151.52000 |
| LogP: | 3.65820 |
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- 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 | 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 | 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
- 91-59-8
naphthalen-2-ylamine
A
- 118-33-2
6-amino-naphthalene-1,3-disulfonic acid
B
- 86-65-7
2-aminonaphthalene-6,8-disulfonate
| Conditions | Yield |
|---|---|
| at 50 - 85℃; Eingiessen in Eiswasser, Filtrieren und Erhitzen des Filtrats zum Sieden; | |
| Giessen in Eiswasser; |
| Conditions | Yield |
|---|---|
| With sulfuric acid |
- 55524-84-0
2-Aminonaphthalene-1,5,7-trisulfonic 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
- 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 | Yield |
|---|---|
| With sulfuric acid; sulfur trioxide In water | A n/a B 9.5 %. |
- 118-33-2
6-amino-naphthalene-1,3-disulfonic acid
| 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 | Yield |
|---|---|
| With sodium carbonate |
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Chemistry
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
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.
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).
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. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
RIDADR 1759
HazardClass 8
PackingGroup III