5,6-diaminonaphthalene-1-sulphonic acid
- CAS NO.：84-92-4
- Empirical Formula: C10H10N2O3S
- Molecular Weight: 238.263
- EINECS: 201-574-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:20:31
What is 5,6-diaminonaphthalene-1-sulphonic acid?
The Uses of 5,6-diaminonaphthalene-1-sulphonic acid
5,6-Diaminonaphthalene-1-sulfonic acid is used as an intermediate for naphthotriazoles. A green pigment (C.I. Pigment Green 9) is obtained by treatment with iron(III) salts.
Production Methods
1-Aminonaphthalene-5-sulfonic acid is coupled with diazotized aniline, and the resulting isolated azo compound (purpurin base) is reduced by heating with zinc and ammonia at 100℃ and allowing ammonia and aniline to distill off. The product 5,6-diaminonaphthalene-1-sulphonic acid is isolated in 76 % yield by acidification of the screened liquors.
Properties of 5,6-diaminonaphthalene-1-sulphonic acid
| EPA Substance Registry System | 1-Naphthalenesulfonic acid, 5,6-diamino- (84-92-4) |
Safety information for 5,6-diaminonaphthalene-1-sulphonic acid
Computed Descriptors for 5,6-diaminonaphthalene-1-sulphonic acid
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