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| | 7-Amino-1,3-naphthalenedisulfonic acid Basic information |
| Product Name: | 7-Amino-1,3-naphthalenedisulfonic acid | | Synonyms: | 7-amino-3-naphthalenedisulfonicacid;AMINO K ACID;7-aminonaphthalene-1,3-disulphonic acid;2-NAPHTHYLAMINE-6,8-DISULFONIC ACID (AMINO G SALT);1,3-Disulfo-7-naphthylamine;7-Amino-1,3-naphthalenedisulfonic acid, tech.;1,3-Naphthalenedisulfonic acid, 7-amino-;7-Amino-1,3-naphthalenedisulfonic acid | | CAS: | 86-65-7 | | MF: | C10H9NO6S2 | | MW: | 303.31 | | EINECS: | 201-689-2 | | Product Categories: | Intermediates of Dyes and Pigments;Anilines, Aromatic Amines and Nitro Compounds | | Mol File: | 86-65-7.mol |  |
| | 7-Amino-1,3-naphthalenedisulfonic acid Chemical Properties |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 26-28A | | RIDADR | 1759 | | HazardClass | 8 | | PackingGroup | III | | HS Code | 29214900 |
| | 7-Amino-1,3-naphthalenedisulfonic acid Usage And Synthesis |
| Chemical Properties | off-white to beige-green to light brown. 2-Aminonaphthalene-6,8-disulfonic acid [86-65-7]. (7-aminonaphthalene-1,3-disulfonic acid), amino G acid, C10H9NO6S2, Mr 303.3, and its bis-alkali-metal salts are very soluble in water, but the acid salts, especially the acid potassium salt, are much less soluble. | | Uses | Azo dye intermediate. | | Uses | 7-Amino-1,3-naphthalenedisulfonic Acid is a reagent which may be used in the preparation of pyrimidine derivatives. | | Production Methods | The disodium or dipotassium salt of 2-hydroxynaphthalene-6,8-disulfonic acid is heated with excess aqueous ammonia and ammonium bisulfite at 185℃ for 18 h. The reaction mixture is basified, heated to remove excess ammonia, neutralized, and evaporated while any residual sulfite is removed. The resulting amino G acid liquor (95 % yield) is used directly for caustic fusion to give g acid, the major outlet. | | Safety Profile | Questionable
carcinogen with experimental neoplastigenic
data. When heated to decomposition it
emits toxic fumes of NOx and SOx. |
| | 7-Amino-1,3-naphthalenedisulfonic acid Preparation Products And Raw materials |
| Preparation Products | DIRECT ORANGE 72-->7,7'-[Ureylenebis[(1-hydroxy-3-sodiosulfonaphthalene-6,2-diyl)azo(4,1-phenylene)azo]]bis[naphthalene-1,3-disulfonic acid disodium] salt-->MORDANT YELLOW 20-->trisodium [7-[[4-[[4-[[4-[[2,4-dihydroxy-5-[(2-hydroxy-5-sulphophenyl)azo]phenyl]azo]benzoyl]amino]-o-tolyl]azo]-o-tolyl]azo]naphthalene-1,3-disulphonato(5-)]cuprate(3-)-->DIRECT YELLOW 118-->7-Hydroxy-8-[[2-methyl-4-[[6,8-bis(sodiosulfo)-2-naphthalenyl]azo]phenyl]azo]naphthalene-1,3-disulfonic acid disodium salt-->DIRECT YELLOW 117-->tetrasodium (4Z)-4-[[4-(6,8-disulfonatonaphthalen-2-yl)diazenylnaphthalen-1-yl]hydrazinylidene]-3-oxo-naphthalene-2,7-disulfonate-->trisodium 7-[[4-[[4-[[6-[(4-aminobenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]benzoyl]amino]-o-tolyl]azo]naphthalene-1,3-disulphonate |
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