Description

Bis(4-Hydroxybenzoyl)-1,4:3,6-Dianhydrosorbitol is a high-purity, multifunctional organic compound that serves as a versatile building block and performance additive in advanced material synthesis. Its unique molecular structure, featuring dual phenolic hydroxyl groups and a rigid dianhydrosorbitol core, provides exceptional thermal stability and reactivity for creating high-performance polymers and specialty chemicals. This product is essential for R&D and production teams in the pharmaceutical, polymer, and fine chemical industries seeking to develop innovative materials with enhanced properties.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, leveraging its phenolic groups for conjugation.
• Polymer & Resin Modifier: Acts as a cross-linking agent, chain extender, or monomer for producing high-performance polyesters, polycarbonates, and epoxy resins with improved thermal and mechanical properties.
• UV Absorber / Stabilizer Precursor: Serves as a key intermediate in the manufacture of advanced light stabilizers and UV absorbers for plastics, coatings, and packaging materials.
• Liquid Crystal & OLED Material Synthesis: Utilized as a rigid core component in the development of liquid crystal polymers (LCPs) and organic light-emitting diode (OLED) materials.
• Adhesive & Coating Formulations: Incorporated to enhance adhesion, chemical resistance, and durability in specialty adhesive and industrial coating systems.
• Academic & Industrial Research: A valuable reagent for chemical research, process development, and exploring new applications in material science.

Basic Information

Product Name	Bis(4-Hydroxybenzoyl)-1,4:3,6-Dianhydrosorbitol
CAS No.	185756-31-4
Molecular Formula	C26H20O10
Molecular Weight	492.43 g/mol
Synonyms	1,4:3,6-Dianhydro-2,5-bis-O-(4-hydroxybenzoyl)-D-glucitol; 2,5-Bis(4-hydroxybenzoyl)-1,4:3,6-dianhydrosorbitol; Bis(4-hydroxybenzoyl) isosorbide; Isosorbide bis(4-hydroxybenzoate); DIB; 1,4:3,6-Dianhydro-D-glucitol 2,5-bis(4-hydroxybenzoate); Contact for additional trade names and abbreviations.
EINECS	Contact for details

Quality Control

Our Bis(4-Hydroxybenzoyl)-1,4:3,6-Dianhydrosorbitol is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the highest standards of purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment ensures reliability for your critical R&D and production processes.

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). Keep away from incompatible materials such as strong oxidizing agents. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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