2,5-Diaminobenzenesulfonic acid

CAS 88-45-9(H2N)2C6H3SO3HChemical Synthesis

2,5-Diaminobenzenesulfonic acid (CAS: 88-45-9) is an organic compound with the linear formula (H₂N)₂C₆H₃SO₃H and a molecular weight of 188.20 g/mol. This chemical serves as a valuable building block in organic synthesis. Its structure, featuring both amino and sulfonic acid groups, makes it useful in the preparation of dyes and other complex organic molecules within research and industrial chemical applications.

Synonyms: (H2N)2C6H3SO3H

Email us

2,5-Diaminobenzenesulfonic acid ((H2N)2C6H3SO3H) — chemical structure, CAS 88-45-9; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisOrganic Building BlocksSulfonic/Sulfinic AcidsSulfur Compounds

01 /Applications

Dye Synthesis

2,5-Diaminobenzenesulfonic acid is utilized as a key intermediate in the synthesis of various azo dyes. Its structure allows for the introduction of chromophoric and auxochromic groups essential for colour development in textiles and other materials.

Organic Synthesis Intermediate

As a bifunctional molecule containing amine and sulfonic acid moieties, it acts as a versatile building block in constructing more complex organic structures. It is employed in research laboratories for the development of novel compounds.

Chemical Research

This compound is used in academic and industrial research settings for exploring new chemical pathways and developing novel materials. Its reactivity makes it suitable for various chemical transformations.

02 /Properties

Molecular weight	188.20
Linear formula	(H2N)2C6H3SO3H
Assay	≥97.0% (T)
Melting point	298-300 °C (dec.)(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 2583PSN2 8 / PGII
Water hazard class (WGK, DE)	2
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

88-45-9

MDL number

MFCD00007904

Beilstein registry

2970398

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 2,5-Diaminobenzenesulfonic acid used for?

2,5-Diaminobenzenesulfonic acid (CAS: 88-45-9) is primarily used as a building block in organic synthesis, particularly in the preparation of dyes and other complex organic molecules for research and industrial applications.

What are the CAS number and chemical formula for 2,5-Diaminobenzenesulfonic acid?

The CAS number for 2,5-Diaminobenzenesulfonic acid is 88-45-9. Its linear chemical formula is (H₂N)₂C₆H₃SO₃H.

What grade and purity does Tech Serve Solutions supply for 2,5-Diaminobenzenesulfonic acid?

Tech Serve Solutions supplies 2,5-Diaminobenzenesulfonic acid with an assay of ≥97.0% (T). TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.

How should 2,5-Diaminobenzenesulfonic acid be handled?

2,5-Diaminobenzenesulfonic acid is classified as Danger (GHS05) and causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and respiratory protection (type N100 or P3), must be used. Handle in a well-ventilated area.

How is 2,5-Diaminobenzenesulfonic acid packed and shipped?

This compound is shipped as UN 2583, PSN 2, Class 8, Packing Group II. Packaging is designed to meet international shipping regulations for hazardous materials.

How can I request a sample or quote for 2,5-Diaminobenzenesulfonic acid?

To request a sample or a quote for 2,5-Diaminobenzenesulfonic acid, please contact our sales department through the website or by phone, providing your details and the quantity required.