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| CAS No.: | 116-63-2 |
|---|---|
| Name: | 1-Amino-2-naphthol-4-sulfonic acid |
| Article Data: | 27 |
| Molecular Structure: | |
|
|
|
| Formula: | C10H9 N O4 S |
| Molecular Weight: | 239.252 |
| Synonyms: | 2-Naphthol-4-sulfonicacid, 1-amino- (3CI); 1,2,4-Acid; 1-Amino-2-hydroxy-4-naphthalenesulfonic acid;1-Amino-2-hydroxy-4-sulfonaphthalene; 1-Amino-2-naphthol-4-sulfonate;1-Amino-2-naphthol-4-sulfonic acid; 1-Amino-2-naphthol-4-sulphonic acid;1-Amino-4-sulfo-2-naphthol; 2-Hydroxy-4-sulfo-1-naphthylamine;3-Hydroxy-4-amino-1-naphthalenesulfonic acid; 4-Amino-3-hydroxy-1-naphthalenesulfonicacid; 4-Amino-3-naphthol-1-sulfonic acid; NSC 25061; NSC 4986 |
| EINECS: | 204-147-3 |
| Density: | 1.627 g/cm3 |
| Melting Point: | 295 ºC |
| Boiling Point: | °Cat760mmHg |
| Flash Point: | °C |
| Solubility: | insoluble |
| Appearance: | Pinkish white to grey crystalline powder |
| Hazard Symbols: |
|
| Risk Codes: | R36/37/38 |
| Safety: | S26;S37/39 |
| Transport Information: | UN 2585 |
| PSA: | 109.00000 |
| LogP: | 3.03630 |
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| Conditions | Yield |
|---|---|
| Stage #1: 1-Nitroso-2-naphthol With iron(III) chloride; pyrographite; sodium hydroxide In water at 60 - 65℃; for 0.75h; Large scale; Stage #2: With hydrazine hydrate In water for 6h; Large scale; Stage #3: With sulfuric acid; sodium sulfite In water at 60 - 65℃; for 12h; pH=7 - 8; Concentration; Reagent/catalyst; Large scale; | 98.9% |
| With sodium disulfite man saeuert bei 30-40grad mit Salzsaeure an; | |
| With sodium hydrogensulfite | |
| With sodium hydrogensulfite |
- 10102-43-9
nitrogen(II) oxide
A
- 116-63-2
1-amino-2-naphthol-4-sulfonic acid
| Conditions | Yield |
|---|---|
| Stage #1: bis(4-amino-3-hydroxonaphthalene-1-sulphonic acid)copper; nitrogen(II) oxide In methanol at 20℃; for 4h; Stage #2: With air In methanol at 20℃; for 2h; Stage #3: sodium sulfide In methanol; water | A 40% B 40% C n/a |
| Conditions | Yield |
|---|---|
| With sodium metabisulfite; ammonium peroxydisulfate | |
| With sodium metabisulfite; ozone | |
| With sodium metabisulfite; potassium permanganate |
| Conditions | Yield |
|---|---|
| With sodium disulfite Versetzen mit Salzsaeure; |
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[1,2]naphthoquinone-1-chlorimin
- 116-63-2
1-amino-2-naphthol-4-sulfonic acid
| Conditions | Yield |
|---|---|
| With sodium disulfite |
- 116-63-2
1-amino-2-naphthol-4-sulfonic acid
| Conditions | Yield |
|---|---|
| With hydrogenchloride; tin(ll) chloride |
| Conditions | Yield |
|---|---|
| With sodium metabisulfite; ammonium peroxydisulfate | |
| With sodium metabisulfite; ozone | |
| With sodium metabisulfite; potassium permanganate |
| Conditions | Yield |
|---|---|
| With sodium hydroxide; air; sodium sulfite |
| Conditions | Yield |
|---|---|
| With sodium hydrogensulfite Reaktion ueber mehrere Stufen; |
| Conditions | Yield |
|---|---|
| With sodium hydrogensulfite |
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Chemistry
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IUPAC Name: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid
Molecular Formula: C10H9NO4S
Molecular Weight: 239.24 g/mol
Canonical SMILES: c1(c2c(c(N)c(c1)O)cccc2)S(O)(=O)=O
InChI: InChI=1/C10H9NO4S/c11-10-7-4-2-1-3-6(7)9(5-8(10)12)16(13,14)15/h1-5,12H,11H2,(H,13,14,15)
Mol File: 116-63-2.mol
Classification Code: Mutation data
Product Categories: Intermediates of Dyes and Pigments; Sulphur Derivatives; Organic acids
Water solubility: insoluble
Stability: Stable. Incompatible with strong bases, acid chlorides, acid anhydrides, strong oxidizing agents
XLogP3-AA: 0.9
H-Bond Donor: 3
H-Bond Acceptor: 5
Rotatable Bond Count: 1
Tautomer Count: 13
Exact Mass: 239.025228
Topological Polar Surface Area: 101
Heavy Atom Count: 16
Complexity: 350
Melting Point: 290 °C (dec.)(lit.)
Atmospheric OH Rate Constant: 1.51E-10 cm3/molecule-sec at 25 °C
Index of Refraction: 1.748
Molar Refractivity: 59.8 cm3
Molar Volume: 147 cm3
Polarizability: 23.7×10-24 cm3
Surface Tension: 86.4 dyne/cm
Density of 4-Amino-3-hydroxy-1-naphthalenesulfonic acid (CAS NO.116-63-2): 1.627 g/cm3
Safety Profile
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 37/39-26
S37/39: Wear suitable gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
PackingGroup of 4-Amino-3-hydroxy-1-naphthalenesulfonic acid (CAS NO.116-63-2): III
Specification
4-Amino-3-hydroxy-1-naphthalenesulfonic acid (CAS NO.116-63-2), its Synonyms are 1-Naphthalenesulfonic acid, 4-amino-3-hydroxy- ; 1-Amino-2-naphthol-4-sulfonic acid ; 4-Amino-3-hydroxynaphthalene-1-sulphonic acid ; 1,2,4-Acid ; -Amino-4-sulfo-2-naphthol ; 2-Hydroxy-4-sulfo-1-naphthylamine ; 4-Amino-3-hydroxynaphthalenesulfonic acid . It is a solid.