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4,4'-Biphenyldicarboxylic Acid Pharmaceutical Intermediates High Purity Organic Acid for Polymer and Specialty Applications

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4,4'-Biphenyldicarboxylic Acid Pharmaceutical Intermediates High Purity Organic Acid for Polymer and Specialty Applications
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Features
Specifications
CAS: 787-70-2
Appearance: White Crystalline Powder
Purity: ≥99%
Melting Point: 278–282°C
Solubility: Sparingly Soluble In Water, Soluble In DMF, DMSO, NMP
Moisture Content: ≤0.2%
Loss On Drying: ≤0.5%
Highlight:

4 4'-Biphenyldicarboxylic Acid pharmaceutical intermediates

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high purity organic acid for polymers

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specialty applications organic acid

Basic Infomation
Place of Origin: CHINA
Brand Name: ADDE TECHNOLOGY
Certification: CE
Model Number: ADDE-JIAOZUOGAOAN
Payment & Shipping Terms
Packaging Details: 1000L IBC DRUM
Delivery Time: 7-10 days
Payment Terms: L/C, T/T
Supply Ability: 100 TON per month
Product Description
4,4'-Biphenyldicarboxylic Acid Pharmaceutical Intermediates
Product Attributes
Attribute Value
CAS 787-70-2
Appearance White crystalline powder
Purity ≥99%
Melting Point 278–282°C
Solubility Sparingly soluble in water, soluble in DMF, DMSO, NMP
Moisture Content ≤0.2%
Loss on Drying ≤0.5%
Product Description

Product Name: 4,4'-Biphenyldicarboxylic Acid - High Purity Organic Acid for Polymer and Specialty Applications

CAS Number: 787-70-2

4,4'-Biphenyldicarboxylic Acid is a high-purity aromatic dicarboxylic acid widely used as an intermediate in the production of high-performance polymers, liquid crystal polymers, and specialty chemicals. It appears as a white crystalline powder, virtually odorless, and is sparingly soluble in water but highly soluble in organic solvents such as dimethylformamide, dimethyl sulfoxide, and N-methyl-2-pyrrolidone.

Its chemical structure, featuring two carboxyl groups attached to a biphenyl core, provides excellent rigidity and thermal stability, which makes it a key building block in the synthesis of polyesters, polyimides, and other advanced materials requiring high mechanical strength and thermal resistance.

Applications

In polymer manufacturing, 4,4'-Biphenyldicarboxylic Acid is commonly used to produce:

  • Polyethylene terephthalate (PET)
  • Liquid crystal polymers
  • High-performance polyesters for films, fibers, coatings, and engineering plastics

Its rigid biphenyl structure imparts superior dimensional stability, chemical resistance, and mechanical performance to the resulting polymers. This makes it highly suitable for:

  • Electronic materials
  • High-temperature-resistant plastics
  • Precision components in the automotive, aerospace, and electronics industries
Technical Specifications
Parameter Specification
Chemical Name 4,4'-Biphenyldicarboxylic Acid
CAS Number 787-70-2
Appearance White crystalline powder
Purity ≥99%
Melting Point 278-282°C
Solubility Sparingly soluble in water, soluble in DMF, DMSO, NMP
Moisture Content ≤0.2%
Loss on Drying ≤0.5%
Applications Polymer intermediates, high-performance polyesters, liquid crystal polymers, specialty chemicals, dyes, pharmaceuticals

4,4'-Biphenyldicarboxylic Acid's combination of high purity, thermal stability, and chemical versatility makes it an essential raw material for advanced polymer synthesis, high-performance coatings, and specialty chemical formulations.

The product is produced under strict quality control conditions to ensure compliance with industrial and pharmaceutical-grade standards. Each batch is tested for purity, crystallinity, moisture content, and other critical parameters to ensure consistent performance in demanding applications.

Storage: Store in a cool, dry place, protected from strong oxidizers and moisture, to maintain stability and effectiveness.

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