| Identification | Back Directory | [Name]
4,5-diamino-1-naphthalenesulfonic acid | [CAS]
6362-18-1 | [Synonyms]
4,5-diamino-1-naphthalenesulfonic acid
4,5-diaminonaphthalene-1-sulfonic acid
1-Naphthalenesulfonic acid, 4,5-diamino- | [Molecular Formula]
C10H10N2O3S | [MDL Number]
MFCD01565682 | [MOL File]
6362-18-1.mol | [Molecular Weight]
238.26 |
| Hazard Information | Back Directory | [Uses]
4,5-Diaminonaphthalene-1-sulfonic acid is used as an intermediate for 4,5-dihydroxynaphthalene-1-sulfonic acid and perimidine derivatives. | [Synthesis]
1-Nitronaphthalene is sulfonated with oleum at 20℃, and the sulfonation mass is nitrated at 35℃. After quenching and liming out, the liquors are reduced with iron powder under slightly acidic conditions. After removal of iron residues, the product 4,5-diamino-1-naphthalenesulfonic acid is isolated in 40 % yield by acidifying and salting. |
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