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CAS No.: | 35400-55-6 |
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Name: | 5-amino-4-hydroxynaphthalene-2-sulphonic acid |
Article Data: | 7 |
Molecular Structure: | |
Formula: | C10H9 N O4 S |
Molecular Weight: | 239.252 |
Synonyms: | 1-Naphthol-3-sulfonicacid, 8-amino- (4CI); 5-Amino-4-hydroxy-2-naphthalenesulfonic acid;8-Amino-1-hydroxy-3-naphthalenesulfonic acid |
Density: | 1.627g/cm3 |
Boiling Point: | °Cat760mmHg |
Flash Point: | °C |
PSA: | 109.00000 |
LogP: | 3.03630 |
4,5-diamino-naphthalene-2-sulfonic acid
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
---|---|
With sulfuric acid at 120℃; |
sulfuric acid
4,5-diamino-naphthalene-2-sulfonic acid
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
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at 120℃; im geschlossenen Gefaess; | |
at 120℃; im geschlossenen Gefaess; |
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
---|---|
With water; zinc |
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
---|---|
With potassium hydroxide at 180 - 200℃; |
8-Aminonaphthalene-1,3-disulfonic acid
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
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at 180 - 200℃; |
2,6-diamino-9,10-anthraquinone
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
---|---|
Stage #1: 2,6-diamino-9,10-anthraquinone With sulfuric acid at 20 - 40℃; for 0.666667h; Stage #2: With nitrosylsulfuric acid at 20 - 25℃; for 4h; Stage #3: 5-amino-4-hydroxy-2-naphthalenesulphonic acid at 5 - 10℃; pH=0.5 - 1; | 90% |
Stage #1: 2,6-diamino-9,10-anthraquinone With sulfuric acid at 40℃; for 0.5h; Stage #2: With nitrosylsulfuric acid at 20 - 25℃; for 4h; Stage #3: 5-amino-4-hydroxy-2-naphthalenesulphonic acid With sodium hydroxide at 5 - 10℃; pH=0.5 - 1; |
2,6-diamino-9,10-anthraquinone
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
---|---|
Stage #1: 2,6-diamino-9,10-anthraquinone With sulfuric acid at 20 - 40℃; for 0.666667h; Stage #2: With nitrosylsulfuric acid at 20 - 25℃; for 4h; Stage #3: 5-amino-4-hydroxy-2-naphthalenesulphonic acid at 0 - 5℃; pH=8 - 9; | 80% |
Stage #1: 2,6-diamino-9,10-anthraquinone With sulfuric acid at 40℃; for 0.5h; Stage #2: With nitrosylsulfuric acid at 20 - 25℃; for 4h; Stage #3: 5-amino-4-hydroxy-2-naphthalenesulphonic acid With sodium hydroxide at 0 - 5℃; pH=8 - 9; |
amino-benzene-1,4-disulfonic acid
5-amino-4-hydroxy-2-naphthalenesulphonic acid
C16H13N3O10S3
Conditions | Yield |
---|---|
Stage #1: amino-benzene-1,4-disulfonic acid With hydrogenchloride; sodium nitrite In water at 5℃; Stage #2: 5-amino-4-hydroxy-2-naphthalenesulphonic acid With sodium hydroxide In water at 0 - 20℃; for 3.5h; pH=0.8 - 1.1; | 70% |
Stage #1: amino-benzene-1,4-disulfonic acid With hydrogenchloride; sodium nitrite In water at 5℃; Stage #2: 5-amino-4-hydroxy-2-naphthalenesulphonic acid With sodium hydroxide at 0 - 20℃; for 3.5h; pH=0.8 - 1.1; |
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
---|---|
Stage #1: 5-amino-4-hydroxy-2-naphthalenesulphonic acid With sodium carbonate; sodium nitrite; 4-aminobenzene sulfonic acid; hydrogenchloride In water at 5 - 20℃; Stage #2: With sodium pyrosulfate at 50℃; for 4h; Further stages.; | 45% |
5-amino-4-hydroxy-2-naphthalenesulphonic acid
Conditions | Yield |
---|---|
With cis-nitrous acid |