Description

Sodium 2,5-Dihydroxybenzenesulphonate is a versatile organic salt widely used as a key intermediate in the synthesis of dyes, pigments, and specialty chemicals. Its sulfonated dihydroxybenzene structure provides excellent water solubility and reactivity, making it valuable for creating colorants and functional materials. This compound is essential for manufacturers in the dye, pharmaceutical, and fine chemical industries seeking reliable, high-purity intermediates for their production processes.

Application

• Dye and Pigment Intermediate: A crucial building block for the synthesis of azo dyes, acid dyes, and reactive dyes, particularly for textiles and leather.
• Pharmaceutical Synthesis: Serves as an intermediate in the production of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Used as a reagent or starting material in organic synthesis and catalysis research.
• Photographic Chemicals: Employed in the formulation of specific developers and other photographic processing chemicals.
• Corrosion Inhibitor Formulation: Acts as a component in water treatment formulations and metal surface treatment processes.
• Fine Chemical Production: Utilized in the manufacture of other sulfonated aromatic compounds and specialty surfactants.

Basic Information

Product Name	Sodium 2,5-Dihydroxybenzenesulphonate
CAS No.	10021-55-3
Molecular Formula	C6H5NaO6S
Molecular Weight	228.16 g/mol
Synonyms	2,5-Dihydroxybenzenesulfonic Acid Sodium Salt; Sodium 2,5-Dihydroxybenzenesulfonate; 1,4-Dihydroxy-3-sulfobenzoic Acid Sodium Salt (tautomer); 2,5-Dihydroxybenzene-1-sulfonic Acid Sodium Salt; Hydroquinone-2-sulfonic Acid Sodium Salt; Quinolsulfonic Acid Sodium Salt; Benzenesulfonic acid, 2,5-dihydroxy-, monosodium salt
EINECS	233-013-3

Quality Control

Our Sodium 2,5-Dihydroxybenzenesulphonate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Reported on COA
pH (5% solution)	Reported on COA

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.