Description

3,5-Dibromo-4-Hydroxybenzenesulphonic Acid is a halogenated phenolic sulfonic acid derivative, serving as a versatile and reactive chemical intermediate. Its value lies in the strategic positioning of bromine atoms and the sulfonic acid group, which facilitate electrophilic substitution and coupling reactions, making it a key building block for synthesizing more complex molecules. This compound is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty dye industries for the development of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring brominated aromatic structures.
• Agrochemical Synthesis: Serves as a precursor in the manufacture of herbicides, fungicides, and other crop protection agents.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing brominated azo dyes and other specialty colorants.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, enhancing properties like hydrophilicity or ion-exchange capacity.
• Chemical Research & Development: Utilized in organic synthesis labs for constructing complex bromoarene derivatives for material science and medicinal chemistry.
• Cross-coupling Reactions: Functions as a substrate in Suzuki, Heck, and other palladium-catalyzed coupling reactions to create biaryl structures.

Basic Information

Product Name	3,5-Dibromo-4-Hydroxybenzenesulphonic Acid
CAS No.	4232-99-9
Molecular Formula	C6H4Br2O4S
Molecular Weight	331.97 g/mol
Synonyms	4-Hydroxy-3,5-dibromobenzenesulfonic Acid; 3,5-Dibromo-4-hydroxybenzenesulfonic Acid; Benzenesulfonic acid, 3,5-dibromo-4-hydroxy-; 3,5-Dibromophenol-4-sulfonic Acid; DBHBSA; 3,5-Dibromo-4-hydroxyphenylsulfonic Acid
EINECS	224-197-5

Quality Control

Our 3,5-Dibromo-4-Hydroxybenzenesulphonic Acid is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets exacting specifications for use in sensitive synthesis applications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your quality protocols.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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