| Identification | Back Directory | [Name]
2-NAPHTHYLAMINE-8-SULFONIC ACID | [CAS]
86-60-2 | [Synonyms]
BADEN ACID
BADISCHE ACID
AMINOCROCEINIC ACID
2-NAPHTHYLAMINE-8-SULFONIC ACID
7-Naphthylamine-1-sulfonic acid
7-amino-1-naphthalenesulfonicaci
7-aminonaphthalene-1-sulfonicaci
7-aminonaphthalene-1-sulfonic acid
2-Aminonaphthalene-8-Sulfonic Acid
7-AMINO-1-NAPHTHALENESULFONIC ACID
7-azanylnaphthalene-1-sulfonic acid
7-aminonaphthalene-1-sulphonic acid
1-Naphthalenesulfonicacid, 7-amino-
2-NAPHTHYLAMINE-8-SULFONIC ACID ISO 9001：2015 REACH | [EINECS(EC#)]
201-685-0 | [Molecular Formula]
C10H9NO3S | [MDL Number]
MFCD00035725 | [MOL File]
86-60-2.mol | [Molecular Weight]
223.25 |
| Chemical Properties | Back Directory | [Appearance]
Colorless needles, partially soluble in water and alkalies, slightly soluble in alcohol. | [Boiling point ]
220°C (rough estimate) | [density ]
1.3588 (rough estimate) | [refractive index ]
1.6500 (estimate) | [pka]
-0.34±0.40(Predicted) | [Water Solubility ]
0.6g/L(20 ºC) | [Uses]
Azo dye intermediate. |
| Hazard Information | Back Directory | [Chemical Properties]
Colorless needles, partially soluble in water and alkalies, slightly soluble in alcohol. | [Description]
2-Aminonaphthalene-8-sulfonic acid [86- 60-2]. (7-aminonaphthalene-1-sulfonic acid), Badische acid, C10H9NO3S, Mr 223.24, crystallizes from water as needles or prisms although only 0.5 % soluble at 100 ℃. Alkalimetal salts are quite soluble in water. Caustic fusion yields 7-amino-1-naphthol, sulfonation in the cold with 20 % oleum gives 2-aminonaphthalene-6,8-disulfonic acid, but nitration gives a mixture of products. 2-Aminonaphthalene-8-sulfonic acid reacts with diazo compounds to form diazoamino compounds rather than coupling to give azo derivatives. | [Production Methods]
2-Hydroxynaphthalene-8-sulfonic acid is aminated by a Bucherer reaction under conditions similar to those used for Tobias acid. |
|
|