English

Potassium 2,5-dihydroxybenzenesulfonate

March 11, 2026

🌿 Potassium 2,5-dihydroxybenzenesulfonate (CAS: 21799-87-1) 


🧪 Product Overview

Potassium 2,5-dihydroxybenzenesulfonate is a functional aromatic sulfonate compound widely used as an intermediate in pharmaceuticals, dyes, and specialty chemical synthesis. Thanks to its excellent water solubility and reactive phenolic groups, it serves as an important building block for producing advanced materials and fine chemicals.


Applications

1. Pharmaceutical Intermediates

Potassium 2,5-dihydroxybenzenesulfonate is used as a key intermediate in the synthesis of pharmaceutical active ingredients and drug intermediates, especially compounds requiring sulfonated aromatic structures.

2. Dye & Pigment Industry

The compound can be used in the manufacture of specialty dyes and colorants, contributing to improved solubility and stability in aqueous dye systems.

3. Chemical Synthesis & Fine Chemicals

Due to the presence of hydroxyl and sulfonate functional groups, it is widely applied in organic synthesis, functional material preparation, and research applications.

4. Laboratory & R&D Applications

It is commonly utilized in research laboratories and chemical development projects as a reliable intermediate for building more complex aromatic compounds.


📊 Specifications

Product name Potassium 2,5-dihydroxybenzenesulfonate
CAS NO. 21799-87-1
Synonym 2,5-Dihydroxybenzenesulfonicacid,monopotassiumsalt
Appearance White crystalline powder
Purity Min 98%
MF C6H7KO5S
MW 230.28
Related categories Industry Grade
HS Code 2908999090
 

📦 Storage & Packaging

  • Storage Conditions

    • Store in a cool, dry, and well-ventilated place.

    • Keep the container tightly closed when not in use.

    • Protect from moisture, direct sunlight, and strong oxidizing agents.

    • Recommended storage temperature: room temperature (15–25 °C).

    Proper storage helps maintain product stability and purity during long-term storage.


    Packaging

    To ensure safe transportation and product stability, Potassium 2,5-dihydroxybenzenesulfonate is typically supplied in:

    • 25 kg fiber drums with inner double PE bags, or

    • 25 kg cardboard drums, sealed to prevent moisture contamination.

    Customized packaging options are available according to customer requirements and international shipping standards.

     

     

     

You can also fill out our online message form and we will contact you within 24 hours.