Description

2,2′-[1,1′-Biphenyl]-4,4′-Diylbis[3,5-Dimethyl]- 6-Benzofuransulfonic Acid Disodium Salt is a high-purity, water-soluble organic salt with a complex biphenyl-benzofuran core structure. This compound matters for its role as a key intermediate or functional additive in advanced chemical synthesis, offering specific electronic and steric properties. It is needed by research and development laboratories, fine chemical manufacturers, and industries developing specialty materials, optical brighteners, or advanced polymers.

Application

• Fine Chemical Intermediate: A crucial building block for synthesizing complex organic molecules, particularly those with extended conjugated systems.
• Optical Brightener/Whitening Agent Precursor: Used in the development of fluorescent compounds for paper, textiles, and detergent formulations.
• Polymer Additive: Potential application as a functional monomer or additive to impart specific properties like UV absorption or ionic character to polymers.
• Research & Development: Serves as a model compound or starting material in academic and industrial research for photochemistry and materials science.
• Dye and Pigment Synthesis: Intermediate in the production of specialized dyes and pigments requiring high thermal and chemical stability.
• Electroluminescent Materials: Investigated for use in the development of organic light-emitting diodes (OLEDs) due to its rigid, planar structure.

Basic Information

Product Name	2,2′-[1,1′-Biphenyl]-4,4′-Diylbis[3,5-Dimethyl]- 6-Benzofuransulfonic Acid Disodium Salt
CAS No.	133057-91-7
Molecular Formula	C36H28Na2O8S2
Molecular Weight	690.70 g/mol
Synonyms	Disodium 2,2'-(biphenyl-4,4'-diyl)bis(3,5-dimethyl-6-benzofuransulfonate); 4,4'-Bis(3,5-dimethyl-6-sulfobenzofuran-2-yl)biphenyl disodium salt; 2,2'-(4,4'-Biphenylylene)bis(3,5-dimethyl-6-benzofuransulfonic acid) disodium salt; Optical Brightener intermediate; Biphenyl-benzofuran sulfonate salt; C.I. Fluorescent Brightener 393; FB 393 (abbreviation); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 2,2′-[1,1′-Biphenyl]-4,4′-Diylbis[3,5-Dimethyl]- 6-Benzofuransulfonic Acid Disodium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with key parameters such as assay (HPLC), related substances, and loss on drying. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates and ISO standards for industrial chemicals.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Sulfated Ash	Conforms
Solubility	Freely soluble in water

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