Date published: 2025-12-19

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3,4-Diaminobenzenesulfonic acid (CAS 7474-78-4)

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CAS Number:
7474-78-4
Molecular Weight:
188.20
Molecular Formula:
C6H8N2O3S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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3,4-Diaminobenzenesulfonic acid functions as a reagent in various chemical reactions. It acts as a building block in the synthesis of dyes and other organic compounds. 3,4-Diaminobenzenesulfonic Acid participates in the formation of azo dyes through diazotization and coupling reactions. Its mechanism of action involves the nucleophilic attack of the amine groups on the electrophilic diazonium salt, leading to the formation of the azo bond. 3,4-Diaminobenzenesulfonic acid can be used as a reducing agent in the production of indigo dyes. In this process, it donates electrons to the dye precursor, facilitating its conversion to the colored form. 3,4-Diaminobenzenesulfonic acid plays a role in the synthesis of various organic compounds and dyes through its participation in diazotization, coupling, and reduction reactions.


3,4-Diaminobenzenesulfonic acid (CAS 7474-78-4) References

  1. Skin Damages-Structure Activity Relationship of Benzimidazole Derivatives Bearing a 5-Membered Ring System.  |  Djuidje, EN., et al. 2020. Molecules. 25: PMID: 32967192

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

3,4-Diaminobenzenesulfonic acid, 1 g

sc-266867
1 g
$257.00