Names | |
---|---|
Preferred IUPAC name
2-Aminonaphthalene-1-sulfonic acid | |
Other names
2-Naphthylamine-1-sulfonic acid
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Identifiers | |
3D model (
JSmol)
|
|
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.001.211 |
EC Number |
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PubChem
CID
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|
UNII | |
CompTox Dashboard (
EPA)
|
|
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Properties | |
C10H9NO3S | |
Molar mass | 223.25 g·mol−1 |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Tobias acid (2-amino-1-naphthalenesulfonic acid) is an organic compound with the formula C10H6(SO3H)(NH2). It is named after the German chemist Georg Tobias. [1] It is one of several aminonaphthalenesulfonic acids, which are derivatives of naphthalene containing both amine and sulfonic acid functional groups. It is a white solid, although commercial samples can appear otherwise. [2] It is used in the synthesis of azo dyes such as C.I. Acid Yellow 19 and C.I. Pigment Red 49. It is prepared via the Bucherer reaction of 2-hydroxynaphthalene-1-sulfonic acid with ammonia and ammonium sulfite. [3]
Names | |
---|---|
Preferred IUPAC name
2-Aminonaphthalene-1-sulfonic acid | |
Other names
2-Naphthylamine-1-sulfonic acid
| |
Identifiers | |
3D model (
JSmol)
|
|
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.001.211 |
EC Number |
|
PubChem
CID
|
|
UNII | |
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties | |
C10H9NO3S | |
Molar mass | 223.25 g·mol−1 |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Tobias acid (2-amino-1-naphthalenesulfonic acid) is an organic compound with the formula C10H6(SO3H)(NH2). It is named after the German chemist Georg Tobias. [1] It is one of several aminonaphthalenesulfonic acids, which are derivatives of naphthalene containing both amine and sulfonic acid functional groups. It is a white solid, although commercial samples can appear otherwise. [2] It is used in the synthesis of azo dyes such as C.I. Acid Yellow 19 and C.I. Pigment Red 49. It is prepared via the Bucherer reaction of 2-hydroxynaphthalene-1-sulfonic acid with ammonia and ammonium sulfite. [3]