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: 2023-11-06 14:07:37

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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