ChemicalBook > CAS DataBase List > 7-amino-3-hydroxynaphthalene-1-sulphonic acid
7-amino-3-hydroxynaphthalene-1-sulphonic acid
- Product Name
- 7-amino-3-hydroxynaphthalene-1-sulphonic acid
- CAS No.
- 86-61-3
- Chemical Name
- 7-amino-3-hydroxynaphthalene-1-sulphonic acid
- Synonyms
- 7-amino-3-hydroxynaphthalene-1-sulfonic acid;7-Amino-3-hydroxy-1-naphthalenesulfonic acid;7-amino-3-hydroxynaphthalene-1-sulphonic acid;1-Naphthalenesulfonic acid, 7-amino-3-hydroxy-
- CBNumber
- CB1892303
- Molecular Formula
- C10H9NO4S
- Formula Weight
- 239.25
- MOL File
- 86-61-3.mol
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7-amino-3-hydroxynaphthalene-1-sulphonic acid Property
- EPA Substance Registry System
- 7-Amino-3-hydroxy-1-naphthalenesulfonic acid (86-61-3)
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7-amino-3-hydroxynaphthalene-1-sulphonic acid Chemical Properties,Usage,Production
Synthesis
6-Nitrodiazo-1,2,4-acid is heated with aqueous sodium sulfite solution in the presence of copper(II) sulfate. The solution is then acidified and heated further to cause desulfonation. The resulting nitrohydroxynaphthalenesulfonic acid is reduced with iron in the presence of acid. This process is preferred to the traditional deamination of compound 175 with ethanol in the presence of a copper catalyst.
7-amino-3-hydroxynaphthalene-1-sulphonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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